Sen. Chris Van Hollen Christopher (Chris) Van HollenMid-Atlantic states sue EPA over Chesapeake Bay pollution Trump payroll-tax deferral for federal workers sparks backlash Senators urge administration to make payroll tax deferral optional for federal workers MORE (D-Md.) on Sunday said voters across the United States were motivated to elect Democratic candidates in elections on Tuesday after President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE and Republicans tried to repeal and replace ObamaCare.

“And I can tell you a lot of people were very upset that Donald Trump and Republicans tried to take away their access to affordable health care,” he told host Chris Wallace on “Fox News Sunday.”

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Republicans tried and failed multiple times this year to repeal the Obama-era health-care legislation.

Van Hollen, the head of the Democratic Senatorial Campaign Committee, said voters will be further motivated to vote for Democrats in the upcoming 2018 elections if Republicans pass a tax-reform proposal that he said will provide tax cuts for wealthy individuals and corporations while cutting tax breaks for the middle class.

“And they are going to be really mad if they try to pass this huge giveaway to big corporations that are going to be paid for by millions of middle-class families, so those are the kinds of things that are going to keep people motivated to come out,” Van Hollen continued.

The Maryland lawmaker said the sweeping Democratic victories are significant not just because of the “huge grass roots turnout” to the polls but also because of the scope and margin of their wins.

“The question of course is whether that’ll be sustained,” he added.

His remarks come after Democrats won election contests from coast to coast, including gubernatorial contests in Virginia and New Jersey.