Moderate Senate Democrats — many of them on the ballot in 2018 — came together with a unified message Tuesday morning, just before President Donald Trump arrived at the Capitol to meet with the Republican Conference.

Sen. Tim Kaine was perhaps the most direct. The Virginia Democrat said at the news conference that the GOP should make a run at a bipartisan product before bringing to the floor a tax reconciliation bill that would only require a simple majority to pass.

“Why not test us? Why not test us?” Kaine said. “You’ve got a reconciliation bill that you can pull up for a vote at any time, but why not test what we’re saying?”

Republicans view the Democrats’ opposition as a political winner for them, especially in states such as Missouri, which Trump won by 19 points last fall, and where he is heading for rally Wednesday.

But Democrats from those states, including Missouri’s own Claire McCaskill, view the GOP tax plan as toxic.