WASHINGTON — The White House, stung by the collapse of the House Republican health bill last week, is signaling it may be time to start working with moderate Democrats to enact President Donald Trump’s agenda, a shift with the potential to upend years of partisanship in Washington.

“This president is not going to be a partisan president,” White House Chief of Staff Reince Priebus said on “Fox News Sunday.” He said that while “I think it’s time for our folks to come together, I also think it’s time to potentially get a few moderate Democrats on board as well.”