I'm not getting my hopes up, but Mitch McConnell really has thrown a surprising number of brushback pitches in Trump's direction lately.

In a statement to NBC News, the Kentucky Republican — who’ll soon step down from his GOP leadership post — didn’t mention Kennedy by name, but the longtime senator said anyone seeking a confirmation vote must be specific about their intentions related to the polio vaccine.

“Anyone seeking the Senate’s consent to serve in the incoming Administration would do well to steer clear of even the appearance of association with such efforts,” McConnell wrote. He added that “efforts to undermine public confidence in proven cures are not just uninformed — they’re dangerous.”

It was a notable brushback pitch from a key GOP official, but it was also part of a recent pattern: McConnell has thrown a lot of these pitches at Trump and his team lately.

In an interview with the Financial Times, published last week, McConnell warned about the dangers of isolationism, which he seemed to tie directly to his party’s incoming president. “We’re in a very, very dangerous world right now, reminiscent of before World War II,” the senator said, adding, “Even the slogan is the same. ‘America First’ — that was what they said in the ’30s.”
McConnell has a newly published essay in Foreign Affairs magazine, warning against the “right-wing flirtation with isolation and decline.” Referencing a signature phrase from Trump, the Kentucky Republican added, “America will not be made great again by those who simply want to manage its decline.”
The senator’s written piece echoed a speech he delivered earlier this month, rejecting his party’s isolationist wing.
In Congress last month, Matt Gaetz’s bid to become the next attorney general collapsed in the face of opposition from GOP senators. While there was no official tally on the scope of the Republican opposition to the former Florida congressman, The New York Times reported that McConnell was among those staunchly opposed to his prospective nomination.

When political observers take stock on Capitol Hill, looking for Republicans who might be a thorn in the president-elect’s side, they tend to focus on members such as Alaska’s Lisa Murkowski and Maine’s Susan Collins. But what if McConnell — who’s expected to retire at the end of his term, and who doesn’t appear to have anything to lose by standing up to Trump — unexpectedly joins the faction of Trump skeptics?