“If Donald Trump secures the Republican presidential nomination, he would start the general election campaign as the least-popular candidate to represent either party in modern times,” the Washington Post reports.

“Three-quarters of women view him unfavorably. So do nearly two-thirds of independents, 80 percent of young adults, 85 percent of Hispanics and nearly half of Republicans and Republican-leaning independents.”

“Those findings, tallied from Washington Post-ABC News polling, fuel Trump’s overall 67 percent unfavorable rating — making Trump more disliked than any major-party nominee in the 32 years the survey has been tracking candidates.”

Politico: “Donald Trump yanked the Republican Party toward a contested convention over the past 24 hours as he let rip an extraordinary series of statements on abortion, the Geneva Conventions, violence against women and his own commitment to supporting the GOP presidential nominee that seemed to obliterate the notion that the party will unite behind him anytime soon.”

“The fallout for Trump has been swift, as Republican rivals denounced the real estate mogul’s escalating attacks on a reporter who accused Trump’s campaign manager of battery and his suggestion that women should be punished for seeking abortions if the procedure is outlawed — a statement Trump quickly tried to walk back.”

Donald Trump said there would “have to be some form of punishment” for women who have abortions if the procedure were outlawed, NBC News reports.

He didn’t offer specifics, noting that the punishment would “have to be determined.”

When asked if a man should bear responsibility for abortions as well, Trump said “no” he didn’t think so.

Nate Silver: “An underappreciated problem is that Trump’s candidacy is relatively lacking in precedent, which means we’re all trying to figure this out as we go along. Traditional journalists have had trouble covering Trump, but so have empirically-minded ones like us here at FiveThirtyEight. We laid long odds against Trump getting this far, in large part because no similar presidential candidate has done so since primary and caucus voting became widespread in 1972.”

“Put another way, Trump has hacked the system and exposed the weaknesses in American political institutions. He’s uncovered profound flaws in the Republican Party. He’s demonstrated that third-rail issues like racism and nationalism can still be a potent political force. He’s exploited the media’s goodwill and taken advantage of the lack of trust the American public has in journalism. Trump may go away — he’s not yet assured of winning the GOP nomination, and he’ll be an underdog in November if he does — but the problems he’s exposed were years in the making, and they’ll take years to sort out.”