HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR:

This weekend, President Trump once again reached out to Democratic leaders on Capitol Hill to explore a new way to mend or end President Obama's Affordable Care Act. Senate Democratic Leader Chuck Schumer says he rebuffed Mr. Trump's overture, but like the president's previous deal with Democrats on the federal debt ceiling, this is a sign of friction between the Trump administration and the Republican Party.

Joining me now from Santa Barbara, California, to discuss these internal party battles is "NewsHour Weekend" special correspondent Jeff Greenfield.

So, Jeff, map out where the battle lines are. We can clearly say the Democrats are one side and that side is opposite to President Trump — but inside the Republican Party.