A majority of voters across seven battleground states believe President Joe Biden and congressional Democrats are to blame for the crisis at the southern border, which is a top issue ahead of the November election, a Thursday poll found.

Over 60% of respondents in Arizona, Georgia, Michigan, Nevada, North Carolina, Pennsylvania and Wisconsin said Biden and the Democrats in Congress are “very responsible” or “somewhat responsible” for the mass influx of migrants crossing over the U.S.-Mexico border, according to a Bloomberg News/Morning Consult survey. The same poll found swing state voters blaming former President Donald Trump’s administration and congressional Republicans for the border crisis by far less margins.

While the economy remains the top issue for voters across the seven battleground states, it dropped in prominence from January while immigration rose, according to the poll. The issue jumped by the largest margins in Michigan, Georgia and Pennsylvania.