President Trump called out congressional Democrats Sunday morning for resisting his call for stronger border security.

“Democrats, fix the laws. Don’t RESIST,” the president tweeted. “We are doing a far better job than Bush and Obama, but we need strength and security at the Border! Cannot accept all of the people trying to break into our Country. Strong Borders, No Crime!”

Last Wednesday, the president signed an executive order halting the separation of migrant children from their detained parents at the U.S.-Mexico border as a part of his administration's zero tolerance policy, after Republicans and Democrats pressured him to act.

In return, the president has since been demanding long-term legislation on the matter from Congress, repeatedly emphasizing the need for laws to end the entry of illegal immigrants. But Democrats, though lacking the majority in both houses, still have a large enough number in the Senate to filibuster any Republican immigration proposals.

On Saturday, the president used the platform of his weekly radio address to reprimand Democrats for “constantly obstructing” GOP legislation.

“There’s no way you can do it,” Trump said. “Without having Democrats voting, there is no way you can get this done. The Democrats don’t want border security, the Democrats are okay with crime – but we’re not okay with it."

Last week, the House voted down an immigration bill that was popular among conservatives. A vote on a compromise bill was delayed until this week.