Sen. Cory Gardner (R-Colo.), who faces a potentially tough reelection in 2020, says Congress should re-open the federal government, even without a deal on funding President Trump’s border wall.

Gardner is the first Senate Republican to call for ending the partial shutdown even without a deal on Trump’s demand for $5 billion to fund a border wall.

“I think we should pass a continuing resolution to get the government back open. The Senate has done it last Congress, we should do it again today,” he said.

Gardner says the onus will then be on Democrats to explain why they don’t support more money for border security after they voted to spend an additional $46 billion on the border in 2013.