Sen. Lindsey Graham (R-SC) on Sunday warned that President Donald Trump's hard-right policy adviser Stephen Miller was preventing legislation that could end the current government shutdown.

On day two of President Trump's first government shutdown, Graham told reporters that he was hopeful for a Sunday "breakthrough" that could re-open the government.

But he also cautioned that Trump policy adviser Stephen Miller could kill any immigration deal. Graham suspects Miller is responsible for scuttling an earlier deal on so-called Dreamers after Trump had agreed to it.

“Every time we have a proposal, it is only yanked back by staff members. As long as Stephen Miller is in charge of negotiating on immigration, we are going nowhere," Graham reportedly said.

GRAHAM predicts “breakthrough” tonight but says talks remain fluid and notes he can’t stand that “Stephen Miller” is involved

— Robert Costa (@costareports) January 21, 2018

Graham: “Every time we have a proposal, it is only yanked back by staff members. As long as Stephen Miller is in charge of negotiating on immigration, we are going nowhere.”

— Igor Bobic (@igorbobic) January 21, 2018

Casual Graham pic.twitter.com/4hNOuazGTy

— Burgess Everett (@burgessev) January 21, 2018