"I do think that unless we can actually exercise something other than just approving the president's executive calendar, his nominees, judges, that we have no reason to be there", Flake said Sunday morning.
It was unclear if Trump was advocating an expansion of the provision that allows expedited removals of illegal immigrants at or near the US border, a policy his administration has embraced since he took office.
In a pair of tweets sent while being driven to his Virginia golf course, Trump described immigrants as "invaders" and said USA immigration laws should be changed to take away trial rights from undocumented migrants. Trump signaled in his tweet that he doesn't want migrants and asylum seekers to have to be processed through the court system.
He renewed his demand that "Immigration must be based on merit - we need people who will help to Make America Great Again!"
In his weekly address, he claimed there was "a crisis of illegal immigration on our southern border" and "the only solution that will work is being able to detain, prosecute and promptly remove anyone who illegally crosses the border".
Trump's policy took children away from parents who were apprehended crossing the border illegally.
What's that extra in my online cart? Soon, maybe a sales tax
Supreme Court in a decision that should help level the playing field between bricks-and-mortar and internet-based sellers. The 16 states with laws similar to South Dakota's, including IN and ME , are less likely to be challenged.
Trump has made a crackdown on immigration a key element of his administration. "I didn't like the sight or the feeling of families being separated".
"Rather than encouraging people to vote for it, (Trump) gave them a reason not to vote for it by saying 'What's the point of having the vote if the Senate isn't going to pass it?'" he said.
Despite steps by lawmakers from both the Republican and Democratic parties, the Congress has been unable to lift the country-limit.
Once it was evident back in 2016 that Donald Trump would be the likely presidential nominee for the GOP, Will left the Republican Party.
But Trump's frustration over the issue only grew. Democrats, however, say Trump administration practices - including the detention of children in cage-like facilities - are cruel and inhumane and will resonate with voters.
Massive public outcry has grown over children being separated from their parents attempting to cross into the us illegally.
"We are keeping families together, and this will solve that problem", he said after signing the order in the Oval Office.
The White House did not return a call seeking clarification.