WASHINGTON (AP) — The White House says it is “disappointing” that congressional Democratic leaders are pulling out of a meeting with President Donald Trump following his Twitter attack on them.

White House Press Secretary Sarah Sanders says Trump’s invitation for Senate Minority Leader Chuck Schumer and House Minority Leader Nancy Pelosi to join Republican leaders at the White House on Tuesday still stands.

Sanders says the president “encourages them to put aside their pettiness, stop the political grandstanding, show up and get to work.”

Trump’s meeting with Republican leaders will go on as scheduled, as they discuss critical year end issues like funding the government, immigration policy, and tax reform.

Says Sanders: “If the Democrats believe the American people deserve action on these critical year-end issues as we do, they should attend.”