A Republican state lawmaker on Monday announced a bill that would allow victims of certain crimes committed by immigrants in the country illegally to sue politicians who refuse to cooperate with federal immigration authorities.

The proposal, which has not yet been introduced, targets so-called “sanctuary cities” like Denver, Boulder and Aurora, where police and other officials have said they won’t enforce federal immigration laws.

“It’s beyond any reasonable thought as to why the Democrats, along with (Denver Mayor Michael Hancock), would continue to not only act outside the law, which they swore to uphold, but also enjoy immunity from their reckless decision to place Coloradans in danger because of the sanctuary city policies that they created and continue to implement,” Rep. Dave Williams, R-Colorado Springs, said in a news release announcing the bill.

The proposal thrusts the Colorado legislature into the divisive national battle over immigration that reached a fever pitch in the last few days with a few strokes of President Donald Trump’s pen. Over the last six days, Trump signed executive orders targeting so-called “sanctuary cities,” and imposing a travel ban barring immigrants from several predominantly Muslim countries, including Iraq, Iran and Syria.

It is unclear what liability politicians would have under the proposal. In the release, Williams, who is Hispanic, said it would give victims of crimes committed by people in the country illegally in sanctuary cities the right to file both “civil and criminal complaints” against politicians who support such policies.

Though Williams singled out Hancock by name, the Denver mayor has pushed back against the idea that his city is a “sanctuary city,” noting that the city doesn’t have an ordinance or clear policy defining it as such.

The proposal is sure to get an icy reception in the Democrat-controlled House. Democratic lawmakers in recent weeks have attended pro-immigrant rallies and criticized Trump’s executive orders on immigration.