Dem pollster: Clinton showed that being against Trump is not enough to win

Democratic pollster Carly Cooperman on Wednesday pointed to Hillary ClintonHillary Diane Rodham ClintonDem lawmaker says Electoral College was 'conceived' as way to perpetuate slavery Dem strategist says Donna Brazile is joining Fox News 'for the money' CNN to host town hall with Cory Booker in South Carolina MORE's 2016 presidential bid to argue that opposing President TrumpDonald John TrumpDem lawmaker says Electoral College was 'conceived' as way to perpetuate slavery Stanley Cup champion Washington Capitals to visit White House on Monday Transportation Dept requests formal audit of Boeing 737 Max certification MORE alone is not enough to win an election.

"With Hillary Clinton, we saw that just being against Trump isn't enough," Cooperman, who is a partner at Schoen Consulting, told Hill.TV's Joe Concha on "What America's Thinking."

“There is so much anger and passion in the Democratic Party right now to come out against Trump, but I do not think that will be enough," she continued. “The Democrats need more than just that, and they need to have ideas that they're articulating in terms of immigration and the economy."

Cooperman's comments come as Democrats prepare to face off against Republicans in the November midterm elections, with Republicans seeking to defend a narrow majority in the Senate and fend off Democrats trying to retake the House.

Democratic candidates and incumbents have recently lashed out against the Trump administration's controversial "zero tolerance" immigration policy that led to the separation of migrant families at the U.S.-Mexico border, among other criticisms.

— Julia Manchester