President Biden unveiled his American Jobs Plan on Wednesday, describing the $2.3 trillion infrastructure initiative as a big, bold, "once-in-a-generation investment in America." Many Republicans immediately opposed the proposal.

"Infrastructure is often described as the ultimate bipartisan policy," but the GOP opposition to Biden's plan is "really just the latest proof that infrastructure has become the ultimate partisan battleground," Michael Grunwald writes at Politico.

"There's widespread support across the political aisle to upgrade the nation's infrastructure," The Washington Post reports. But Republicans, who lowered the corporate tax rate to 21 percent three years ago from 35 percent, oppose Biden's (broadly popular) plan to raise it to 28 percent, and point out he's paying for eight years of infrastructure-adjacent spending with 15 years of those higher corporate taxes. Many progressives want Biden to spend more and question the need to pay for the plan at all, arguing that infrastructure spending more than pays for itself.

But the bigger, irreconcilable difference Biden faces, Grunwald writes, is that "Democrats and Republicans now have very different ideas of what counts as infrastructure, not only because of their very different political philosophies and policy goals, but because they now live in very different places with very different needs." Republicans favor infrastructure like "new highways that connect rural communities and promote exurban sprawl," where GOP voters live, he argues, and they "see most of what Biden proposed as 'Democratic infrastructure,'" targeting "Democratic voters who overwhelmingly live close together in racially diverse cities and transit-friendly inner-ring suburbs."

In that sense, "infrastructure has really become a fight over how Americans will live in the future," Grunwald writes.

Vibrant cities aren't just full of Democrats; vibrant cities create Democrats by drawing newcomers into the urban way of life that seems to make Americans feel more positive about diversity and government and other Democratic values. Similarly, propping up rural areas makes it more likely for rural children to become rural adults who seem much more likely to vote Republican.

When Republicans fight the Biden bill, they won't just be fighting investments in blue areas of the country. They'll be fighting to prevent the blue areas of the country from getting ahead, getting more attractive, and converting their kids. [Michael Grunwald, Politico]

Read more of Grunwald's analysis at Politico. Peter Weber

Maryland Gov. Larry Hogan (R) suggested he isn't pleased with the current state of the Republican Party on Sunday, telling NBC News' Chuck Todd that it "bothers me" that Republicans have to "swear fealty" to former President Donald Trump "or you get kicked out." The GOP, he said, has become a "circular firing squad where we're just attacking members of our party instead of focusing on solving problems" or debating the Biden administration on policy.

Rep. Adam Kinzinger (R-Ill.), another Republican who isn't afraid to criticize Trump, had a different analogy for his party: the Titanic. "We're ... in the middle of this slow sink," he told CBS News' John Dickerson, later arguing that many of his colleagues are trying to move on too quickly from reckoning with the Jan. 6 Capitol riot. Tim O'Donnell

Minneapolis Federal Reserve President Neel Kashkari doesn't think people should "overreact" to the disappointing April jobs report, but he acknowledged the "bottom line" is that "we are still somewhere between 8 and 10 million jobs below where we were before" the coronavirus pandemic struck. "We still are in a deep hole," he told CBS News' John Dickerson on Sunday's edition of Face the Nation. "And we still need to do everything we can to put those folks back to work more quickly."

So how did economists' predictions miss by so much? Kashkari explained that the pandemic "is unlike any other shock in our lifetimes" because the economic recovery relies so heavily on individuals' assessments of personal safety. "It's very hard to model that out," Kashkari said, noting that people have spent so much time "conditioning" themselves to take precautions. Now, though, "we have to start to change what we've been telling people," he said, agreeing with an earlier point from former Food and Drug Administration Commissioner Scott Gottlieb. "People feeling safe about the virus" will ultimately drive the economic recovery, Kashkari said. Tim O'Donnell

House Minority Leader Kevin McCarthy (R-Calif.) made public the inevitable on Sunday, telling Fox News' Maria Bartiromo that he supports Rep. Elise Stefanik's (R-N.Y.) bid for GOP conference chair.

The No. 3 House position is currently held by Rep. Liz Cheney (R-Wyo.), but she appears to be on the way out after clashing with many of her colleagues over the future of the party, particularly regarding whether former President Donald Trump should play a role. Cheney is one of the most prominent Trump critics within the GOP, and while McCarthy maintained his support for her for a while, he has recently made it clear that he considers her stance to be a hindrance to party unity, which is why he's backing Stefanik, a Trump loyalist, albeit one with a much more mixed voting record than the consistently conservative Cheney.

Stefanik thanked McCarthy for his endorsement. The conference chair vote is expected to take place Wednesday. Tim O'Donnell

What a difference a week makes.

Last Saturday, trainer Bob Baffert was celebrating his record-breaking seventh Kentucky Derby victory. Flash forward to Sunday, and he's been suspended from entering horses at Churchill Downs, which announced Sunday that Baffert's 2021 Derby-winning trainee, Medina Spirit, tested positive for the anti-inflammatory drug betamethasone. The steroid isn't completely banned in Kentucky horse racing, but Medina Spirit's post-race blood sample reportedly was found to have double the legal threshold, which is why Baffert received the punishment.

It appears Medina Spirit will be tested again, so the win is still valid, but if the findings are upheld the horse and Baffert will be stripped of their victory, and Mandaloun, the runner-up, will be crowned.

Baffert has denied involvement and said he's not sure how Medina Spirit could have tested positive. "This shouldn't have happened," he said. "There's a problem somewhere. It didn't come from us."

It's not the first time one of Baffert's horses have registered positive drug tests, however. The New York Times has reported that his horses have failed at least 29 tests in his 40-decade career, including two last year. Read more at The Courier-Journal and The Associated Press. Tim O'Donnell

A bombing at a girls' school in Kabul, Afghanistan, on Saturday killed at least 50 people, many of them students between 11 and 15 years old, The Associated Press reports. Tariq Arian, a spokesman for Afghanistan's Interior Ministry, said more than 100 people were wounded in the attack, but cautioned that casualty figures could still rise.

The Taliban denied responsibility for and condemned the attack, which took place as the U.S. continues its withdrawal from Afghanistan, although Arian blamed the group. The bombing occurred in the Dasht-e-Barchi neighborhood, where many residents are of the ethnic Hazara minority, a mostly Shiite group that has been targeted by Islamic State loyalists in the past.

Frustrated by what they consider inadequate government protection, Hazara leaders from Dasht-e-Barchi met Sunday and decided to create their own protection force, which would be deployed outside schools, mosques, and public facilities, AP reports. The force would cooperate with the government. Read more at The Associated Press and The New York Times. Tim O'Donnell

Tesla CEO Elon Musk poked fun at himself during his Saturday Night Live monologue, joking about his lack of "intonational variation," his marijuana-themed appearance on Joe Rogan's podcast, the spelling of his son's name, and some of his odder tweets.

"Look, I know I sometimes say or post strange things," Musk said, seemingly addressing the controversy surrounding the show's choice to have him host. "But that's just how my brain works. To anyone I've offended, I just want to say: I re-invented electric cars and I'm sending people to Mars in a rocket ship. Did you also think I was gonna be a chill, normal dude?"

Musk also revealed he has Asperger's syndrome, reportedly marking the first time he has spoken publicly about the diagnosis. Watch the full monologue below. Tim O'Donnell