Senate Minority Leader-elect Charles E. Schumer (D-N.Y.) said Democrats will only deal with Trump if he meets them on their goals.
It is yet more evidence that Democrats feel confident about the presidential map.
The president is expected to discuss the issue with congressional leaders, along with other legislative priorities, such as a spending bill and funding to combat the Zika virus.
State Del. Maggie McIntosh (D) called Van Hollen "one of the most effective leaders that we have in Maryland."
The top Democrat on the Senate Foreign Relations Committee successfully avoided reporters' questions.
The new Club for Growth scorecard speaks volumes about the discord in GOP circles.
Chris Van Hollen vs. Donna Edwards could be the Hillary Clinton vs. Elizabeth Warren race many progressives want.
The Michigan Republican was first elected in 2002.
As he ponders statewide office, Maryland's only congressional Republican adopts a hard-line conservative talking point.
Eight Democrats vote to override veto, but bid falls short.