WASHINGTON — President Donald Trump appears to be taking a more positive view of Capitol Hill talks on border security, according to negotiators who struck a distinctly optimistic tone after a White House meeting with a top Republican on the broad parameters of a potential bipartisan agreement.

Appropriations Committee Chairman Richard Shelby of Alabama said Thursday’s session in the Oval Office was “the most positive meeting I’ve had in a long time” and that the president was “very reasonable.”

Down Pennsylvania Avenue at the Capitol, the mood among negotiators was distinctly upbeat, with participants in the talks between the Democratic-controlled House and GOP-held Senate predicting a deal could come as early as this weekend.

There’s a Feb. 15 deadline to enact the measure or a stopgap spending bill to avert another partial government shutdown that neither side wants to reprise. Trump and Republicans are especially eager to avoid another shutdown after they got scalded by the last one.

Trump had previously called the talks a “waste of time” and he’s threatened to declare a national emergency to bypass Congress and build a wall on the U.S.-Mexico border. But Shelby said Trump during their meeting “urged me to get to yes” on an agreement.