10 things you need to know today: May 28, 2016

Police arrested at least 35 people Friday at a San Diego rally for Donald Trump. About 1,000 people reportedly turned out to protest the hard-line immigration policies of the presumptive Republican presidential nominee. Clashes between protesters and supporters were largely non-violent, but police in riot gear began pushing and pepper spraying protesters. "Fantastic job on handling the thugs who tried to disrupt our very peaceful and well-attended rally," Trump tweeted.

Verizon reached a deal with two labor unions, Secretary of Labor Thomas Perez announced Friday. The four-year agreement is now being finalized. Employees are expected to be back at work next week. The deal ends six weeks of strikes over pay and pension cuts after 35,000 to 39,000 Verizon employees walked off their jobs in April, marking the largest strike in U.S. history.

Federal Reserve Chairwoman Janet Yellen said Friday that she expects to hike interest rates "probably in the coming months" if the economy continues to improve. Noting rising oil prices and a stabilizing dollar, Yellen argued that a gradual increase from the near-zero rate the central bank has maintained since the 2008 financial crisis "would be appropriate" to push inflation toward the Fed's 2 percent goal.

Sen. Marco Rubio (R-Fla.) didn't come right out and say that he'd be voting for his former rival Donald Trump, but he heavily implied it in a tweet Friday, when he said that come November, not only will he not be voting for Hillary Clinton, but he also won't be abstaining from voting. "If you can live with a Clinton presidency for four years, that's your right," the senator tweeted. "I can't and will do what I can to prevent it."

Donald Trump said Friday that he would not engage Sen. Bernie Sanders in a debate. The two camps traded comments in the media after Trump said on Wednesday night's Jimmy Kimmel Live that he'd debate the Democratic candidate, and Sanders agreed. "It seems inappropriate that I would debate the second place finisher," Trump said in a statement, referring to Sanders' likely loss to Hillary Clinton for the Democratic nomination.

Drug test results stemming from the London Olympics in 2012 may end up pushing as many as 23 athletes out of the Rio de Janeiro 2016 Games, the International Olympic Committee announced Friday. After retesting 265 doping samples from London using more advanced methods than were available at the time, the IOC says it has found athletes from five different sports and six different countries to be possibly guilty of doping. These results add to the 31 athletes found guilty from samples taken from Beijing's 2008 Games.

Embattled pharmaceutical executive Martin Shkreli endorsed Donald Trump in a tweet late Thursday. "I haven't been called by the Trump camp. I support him vs. Hillary," Shkreli wrote. "He should find a VP candidate who is seasoned in politics, an ugly game." He gained infamy as the CEO of Turing Pharmaceuticals after raising the price of a drug by more than 5,000 percent.

A government-funded study released late Thursday night found a link between cellphone use and "low incidences" of cancerous tumors. Over several years, male rats exposed to the radio frequencies usually emitted by cellphones developed tumors of the brain and heart. Health effects found in animals do not always translate to humans, but "even a very small increase in the incidence of disease resulting from exposure ... could have broad implications," the authors wrote.

Actor Mark Salling was indicted Friday on two charges alleging he saved thousands of pornographic images and videos of children, some younger than 12, on his laptop and a flash drive. Best known for playing a high school student on the musical dramedy Glee, Salling faces up to two decades in prison if convicted.

Led by 33 points from LeBron James, the Cleveland Cavaliers crushed the Toronto Raptors 113-87 in Game 6 of the Eastern Conference Finals on Friday to earn their second straight NBA Finals appearance. The Cavaliers will face either the Oklahoma City Thunder or the Golden State Warriors, which would be a 2015 rematch. James is set to play in his sixth straight Finals, and seventh overall. The Thunder has a chance to knock out the Warriors on Saturday. Play starts at 9 p.m. ET on TNT.