Former Vice President Joe Biden pauses as he greets the crowd on Capitol Hill in Washington, Wednesday, March 22, 2017, following an event marking seven years since former President Barack Obama signed the Affordable Care Act into law. (AP Photo/Susan Walsh)

Former Vice President Joe Biden pauses as he greets the crowd on Capitol Hill in Washington, Wednesday, March 22, 2017, following an event marking seven years since former President Barack Obama signed the Affordable Care Act into law. (AP Photo/Susan Walsh)

WASHINGTON (AP) — Former Vice President Joe Biden said Wednesday he’s concerned about an apparent “romance” between the Trump administration and Russian President Vladimir Putin.

While declining to comment on an FBI probe of possible links between Russia and associates of President Donald Trump, Biden said “the whole notion that there’s still this romance with Putin” was worrisome. Biden cited Secretary of State Rex Tillerson’s decision to skip an upcoming meeting of NATO foreign ministers in Belgium and visit Moscow as a cause for concern.

“What in the hell are we doing?” the Democrat asked.

The former vice president also said Trump’s frequent comments on Twitter are “not helpful” and said Trump needs to understand that “the president’s words matter a great deal” and have global repercussions.

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“I hope the president will realize the campaign has to end and he’s got to start to govern,” Biden told reporters after a Democratic rally at the Capitol Wednesday to protest the Republican health care bill.

He and former President Barack Obama have tried to give Trump “an opportunity to get his sea legs” as president — without interference from them, Biden said, but “it’s getting down to the wire for whether (Trump) is really going to take charge” as president.

Biden said he didn’t know if Trump’s comments about foreign policy showed “a lack of understanding of government and how international relations work” or were a reflection of “a policy prescription that’s changing.” Either way, the American people should be concerned, he said, adding that the United States, “the most powerful, most respected nation in the world is sounding a very uncertain trumpet.”

When the U.S. projects uncertainty, “a lot of stupid things can happen as a consequence,” Biden said.

On health care, Biden said a Republican bill being considered in the House to overhaul Obama’s Affordable Care Act was a huge transfer of money to the super-wealthy.

The biggest beneficiaries are millionaires who would admit, if asked, that they don’t need the money, he said. “Ask them if it’s fair. They’d say no,” Biden said.