As President Donald Trump begins the second foreign trip of his tenure, his political standing at home is reaching a tipping point as Republicans struggle to forge an agreement on health care.

Trump is spending the remainder of the holiday week abroad, with stops in Warsaw, Poland and Hamburg, Germany for a slate of bilateral huddles at the G-20 summit, including a highly anticipated face-to-face meeting with Russian President Vladimir Putin. It comes in the wake of another North Korean intercontinental ballistic test, the latest provocation from the reclusive state that's being viewed as a direct test of Trump.

The heightened focus on foreign affairs means the president has left his chief legislative goal of repealing and replacing Obamacare largely in the hands of Republican lawmakers, who are back in their states for another congressional recess until Monday.

Recently, Trump has been noticeably quiet about the GOP effort to reconstruct the Affordable Care Act. His last public comments on the push came in a tweet Friday, when he appeared to endorse a new strategy of immediately repealing the law and replacing it at a later date. Since then, he's said nothing more, instead focusing on media feuds against CNN and the hosts of MSNBC's "Morning Joe," claiming successes on the economy and border security and lamenting U.S. trade deals.

With more than 33 million followers on Twitter, Trump undoubtedly has a powerful audience at his fingertips. But his scattershot messaging on any given day has left the impression he lacks the focus necessary to alter public opinion, apply sustained political pressure or achieve a singular goal. A White House campaign to brand last week as "energy week" was almost completely swept away by coverage of troubled health care consultations and Trump's incendiary attack on Mika Brzezinski..

A Fox News poll finds that 71 percent of voters believe Trump's tweets are hurting his agenda, with just 13 percent approving of his tweeting.

Repealing and replacing Obamacare has been the one issue that has united most all Republicans -- even the fickle and consistently contradictory Trump -- over the past seven years. But if GOP leadership isn't able to secure the votes in the Senate and attain ultimate passage, it will be seen as a black eye on Trump's capacity to negotiate, a prime characteristic he offered up to voters last year.

Just months ago, Trump warned House Republicans that the party would experience an electoral "bloodbath" if it fails to push through health care legislation.

But over the holiday weekend, Senate Majority Leader Mitch McConnell rejected calls by Trump and others in his party to simply repeal the nation's health care law, telling reporters he intended to stick with his plan of negotiating a comprehensive replacement.

"It's not easy making America great again, is it?" McConnell reportedly asked, playfully ribbing the president's signature slogan.

Sen. Susan Collins of Maine, one of the key moderate holdouts, said Tuesday she was still a "no" vote on the GOP bill unless it is "dramatically changed."

Appearing on Fox News Sunday, Sen. Rand Paul of Kentucky looked just as intractable from the conservative wing of the party, likening the legislation to "a Christmas tree full of billion-dollar ornaments. And it's not repeal."

While a White House official has said it is willing to work on health care into August, it's unclear if McConnell will want to spend that much time on it, especially if he does not see an ultimate path to 50 votes.

Republican voters seem inclined to give their party time. A Morning Consult/Politico survey released Wednesday found that 68 percent of Republicans think Congress should continue to work on the legislation, compared to just 22 percent who say they should move on to other issues.

Meanwhile, Republicans are attempting to bend the debate in their favor by linking a group of moderate Democratic senators to Sen. Elizabeth Warren of Massachusetts. The National Republican Senatorial Committee launched a paid Facebook campaign Wednesday highlighting a quote from Warren endorsing single-payer health care and tying a fleet of her colleagues standing for re-election in 2018 to that statement.

In the near-term though, health care will likely be a side dish to Trump's second international jaunt. Trump's first trip abroad in May was an opportunity for him to escape mounting domestic problems at home -- his firing of FBI Director James Comey and the appointment of Robert Mueller as special counsel.

Those problems still swirl around him. The gathering danger of North Korea and the diplomatic and political risks in a planned conversation with Putin provide the newest potential pitfalls for the president.