The good news keeps on coming for Donald Trump. A CNN poll that sampled 1,002 adults from Thursday to Sunday shows the real estate mogul with 41% support among Republican voters across the country—a new high up from 39% in December. That's more than double the 19% support of nearest rival Ted Cruz. Marco Rubio is next with just 8%. Even voters who don't support Trump think he's unstoppable: More than two-thirds believe he will become the Republican nominee, and 63% say he's the Republican candidate most likely to win come November. An NBC News poll of 9,690 adults conducted last week similarly shows Trump with 39% support among Republican and Republican-leaning voters, while Hillary Clinton has a 14-point lead with 51% support among Democratic and Democratic-leaning voters.
Trump has less to brag about in Iowa, though. A Quinnipiac University survey released Tuesday shows him neck and neck with Cruz in that state, leading by just 2 points, per Politico. That explains why the Cruz camp is targeting Trump so rigorously, but Trump appears to have finally rattled some Republican groups, too. Anti-Trump PACs are now spending big to attack the frontrunner, intending to reverse the idea that he fights for the little guy, reports MSNBC. One online ad even mentions the time he supported impeaching George W. Bush. Still, not all anti-Trump groups are on the same page. "This contest is not yet about defeating Donald Trump, it is about finding an alternative to him," a Republican consultant told Trump critics in an email on Monday. "If that alternative is Cruz, the Republican Party's future is in doubt." (Glenn Beck likes Bernie Sanders more than Trump.)