Trump up in battleground states after convention, leads Clinton
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Support for Republican presidential nominee Donald TrumpDonald John TrumpJulián Castro: It's time for House Democrats to 'do something' about Trump Warren: Congress is 'complicit' with Trump 'by failing to act' Sanders to join teachers, auto workers striking in Midwest MORE ticked up across battleground states following the Republican National Convention last week, according to the new CBS News Battleground Tracker Poll

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Trump now has 42 percent support across the 11 battleground states surveyed — up from the 40 percent he had last week before the convention. Presumptive Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonMissing piece to the Ukraine puzzle: State Department's overture to Rudy Giuliani On The Money: Trump downplays urgency of China trade talks | Chinese negotiators cut US trip short in new setback | Trump sanctions Iran's national bank | Survey finds Pennsylvania, Wisconsin lost the most factory jobs in past year Meghan McCain, Ana Navarro get heated over whistleblower debate MORE has 41 percent support, unchanged from last week's poll.

According to the poll, 55 percent of Republicans said Trump's message at the convention made them feel hopeful, and about 40 percent said it made them feel enthusiastic.

Among independents, 32 percent said it made them feel hopeful, and 25 percent said it made them feel enthusiastic. Still, another 32 percent of independents said they felt scared.

Among Democrats, 63 percent said what they saw and heard from the GOP nominee at the convention made them feel scared.

Most Republicans left the convention feeling at least somewhat more positive about Trump. The poll found that 46 percent said they became "much" more positive. Among independents, only 23 percent said they came away feeling much more positive, and among moderates, only 16 percent said the same.

The poll was conducted among 2,131 registered voters across 11 states including Colorado, Florida, Iowa, Michigan, North Carolina, New Hampshire, Nevada, Ohio, Pennsylvania, Virginia and Wisconsin.