President Trump on Sunday acknowledged that he talked about former Vice President Joe Biden's son, Hunter, during a phone call with Ukrainian President Volodymyr Zelensky in July, but defended the conversation, saying he was talking about "all of the corruption taking place."

Trump told reporters he congratulated Zelensky on his election, and told him "we don't want our people like the vice president and his son creating to the corruption already in the Ukraine." Trump and his lawyer Rudy Giuliani have been accusing Hunter Biden of corruption linked to his business in Ukraine, with little evidence, and Giuliani has publicly said he did pressure Ukrainian officials to investigate the Bidens.

The Wall Street Journal reported that over the course of the call, Trump encouraged Zelensky eight times to work with Giuliani on an investigation into the Bidens. A whistleblower complaint sent to the intelligence community's inspector general was reportedly about communications between Trump and a foreign leader and a "promise" Trump made. During the same time period that Trump called Zelensky, his administration held up $250 million in security aid to Ukraine, with the money released this month. Catherine Garcia

Moving up from the south, Syrian government troops seized several towns in the northeastern part of the country on Monday, one day after reaching an agreement with the Kurdish-led militia that has held control of the area for several years.

The deal was brokered after President Trump pulled back U.S. troops from the border, giving Turkey the opportunity to invade Syria and launch an assault on the Kurds. The Kurds and United States worked together to fight the Islamic State in Syria, and the Kurds took control over territory lost by ISIS. After the U.S. retreat, the Kurds turned to the Syrian government for added protection against Turkey. Turkish President Recep Tayyip Erdogan considers the Kurds terrorists.

Syrian government forces were able to take control of multiple towns from the Kurds, including Taqba, which has a hydroelectric dam on the Euphrates. Kurdish fighters and Turkish troops, accompanied by Syrian militias, spent Monday battling in the border towns of Ras al Ain and Tal Abyad. The recent developments are viewed as victories for Syrian President Bashar al-Assad, who counts Russia and Iran as his allies.

Complicating matters is the fact that the United States has about 50 tactical nuclear weapons stored at the Incirlik Air Base in Turkey, 250 miles from the Syrian border. Two U.S. officials told The New York Times that over the weekend, State and Energy Department employees were reviewing plans for getting the weapons out of Turkey. They are "essentially Erdogan's hostages," the Times says, as moving them from Turkey would basically end the alliance between the United States and Turkey. Leaving them is just as problematic, as it puts the weapons and U.S. in a vulnerable position. Read more at The New York Times. Catherine Garcia

Former National Security Adviser John Bolton was so alarmed by a White House–linked effort to pressure Ukraine to investigate Democrats, he told aide Fiona Hill to alert the National Security Council's chief lawyer, Hill told House impeachment investigators in her 10-hour deposition on Monday, The New York Times reports. Specifically, Bolton told Hill, the top NSC staffer on Russia and Eurasian affairs, to notify White House lawyers that Rudy Giuliani, President Trump's personal lawyer, and White House acting Chief of Staff Mick Mulvaney were running a rogue operation with legal implications, Hill reportedly testified.

"I am not part of whatever drug deal Rudy and Mulvaney are cooking up," Bolton reportedly told Hill to relate to the lawyers, after a heated July 10 conversation with Gordon Sondland, the U.S. ambassador to the European Union and a key player in the Ukraine pressure campaign. Before that encounter, Hill reportedly testified, Bolton told her that "Giuliani's a hand grenade who's going to blow everybody up." Giuliani is now under federal criminal investigation for his work in Ukraine, The Wall Street Journal reported Monday.

Sondland is scheduled to be deposed on Thursday, and House investigators are now trying to decide whether to question Bolton, The Washington Post reports.

Hill also testified that he had strongly opposed Giuliani's successful push to have Trump remove America's ambassador to Kyiv, Marie Yovanovitch, who had a reputation for fighting corruption in Ukraine. "I don't know Fiona and can't figure out what she is talking about," Giuliani told the Post on Monday night, adding that he believes she was out of the loop when it came to Ukraine, at least compared with Sondland. "She just didn't know," Giuliani said, reiterating his assertion that he was working on orders from the State Department. Peter Weber

A Fort Worth, Texas, police officer who shot and killed a woman inside her home early Saturday was charged with murder on Monday, shortly after he resigned from the force.

The former officer, Aaron Dean, is being held at the Tarrant County Correction Center, Fort Worth Police Sgt. Chris Daniels said. The woman, 28-year-old Atatiana Jefferson, was playing video games with her 8-year-old nephew when she was shot. A neighbor had noticed Jefferson's front door was slightly open and called the police department's non-emergency line, asking them to do a wellness check. Body-camera footage released by the police department shows an officer shining a flashlight into the house, then yelling, "Put your hands up, show me your hands," before firing one shot.

The white officer shooting a black woman inside her home caused immediate outrage in Fort Worth, and Daniels had a message for all concerned. "To the citizens and residents of our city, we feel and understand your anger and your disappointment and we stand by you as we work together to make Fort Worth a better place for us all," he said. Jefferson's older sister, Ashley Carr, said Atatiana was "simply going on along with her life, living a law-abiding citizen's peaceful life, and she was killed by a reckless act of a Fort Worth police officer. There is simply no justification for his actions." Catherine Garcia

During her testimony before House lawmakers on Monday, Fiona Hill, President Trump's former top Russia adviser, said that Rudy Giuliani wanted to see certain things happen in Ukraine in order to benefit Trump, so he went around U.S. officials and career diplomats, a person familiar with the matter told The Washington Post.

Hill met with lawmakers from the three House committees investigating Trump's July 25 phone call with Ukrainian President Volodymyr Zelensky. Throughout her 10-hour, closed-door testimony, she shared her concerns over Giuliani's role in Ukrainian foreign policy, the Post says. Hill was a member of the National Security Council, but left one week before Trump's call with Zelensky.

Hill also reportedly praised Marie Yovanovitch, the former ambassador to Ukraine, and told lawmakers she was angry when Yovanovitch was removed in May, after Giuliani pressured Trump to recall her from the post. Last week, Yovanovitch testified as part of the impeachment inquiry, and said Giuliani and some of his Ukrainian allies saw her as a threat, standing in the way of their political and financial interests. Catherine Garcia

Secretary of State Mike Pompeo's former senior adviser Michael McKinley is set to testify privately on Wednesday before the three Congressional committees leading the House impeachment inquiry, two officials involved in the matter told The Washington Post on Monday.

McKinley, a career diplomat who served as ambassador to Afghanistan, Brazil, Colombia, and Peru, stepped down last week. He was not directly involved with Ukraine, and reportedly resigned because he felt Pompeo did not do enough to publicly support State Department personnel caught up in the Ukraine scandal.

A person with knowledge of the matter told CNN McKinley will appear for a transcribed interview, indicating he is not coming under subpoena. Catherine Garcia

Federal investigators in Manhattan are taking a close look at Rudy Giuliani's business dealings in Ukraine, as well as his bank records, people familiar with the matter told The Wall Street Journal.

Prosecutors want to know about meetings Guiliani held and specific work he did in Ukraine. Investigators have been questioning witnesses since at least August regarding Giuliani's relationship with Lev Parnas and Igor Fruman, business associates who were arrested last week and accused of campaign finance violations, the Journal reports. The scope of the inquiry is unknown.

Giuliani, who is President Trump's personal lawyer, told the Journal on Monday he has done nothing wrong, and "they can look at my Ukraine business all they want." Giuliani is ensnared in Trump's Ukraine scandal, and as part of the impeachment inquiry, House committees have heard testimony from witnesses regarding Giuliani's role in the affair, including how he pushed Trump to remove Marie Yovanovitch, the ambassador to Ukraine. Catherine Garcia