Budget Chairman Sen. Bernie Sanders, I-Vt., appeared on the Senate floor in advance of Friday's vote-a-rama to introduce his amendment, which he'll offer later today, to raise the minimum wage to $15 an hour.

"Let’s be clear. This is the richest country in the history of the world," Sanders said. "We can no longer tolerate millions of our workers being unable to feed their families because they are working for starvation wages."

The amendment is similar to the language in the House-passed bill that was stripped from the Senate bill after the parliamentarian ruled it out of bounds. Sanders slammed the parliamentarians "misguided" decision requiring the minimum wage to be stripped from the budget bill but also railed against the Senate for giving such deference to the decision of an "unelected" official.

Sanders will offer the amendment during the vote-a-rama, though it is not expected to pass.

-ABC News' Allison Pecorin

White House press secretary Jen Psaki said on Twitter Friday morning that the White House will work with Congress to replace the current authorizations for the use of military force with "a narrow and specific framework" -- endorsing Sen. Tim Kaine’s, D-Va., longtime work on the issue.

“Tim Kaine has been a leader on questions of war powers throughout his time in the Senate and has helped build a strong bipartisan coalition that understands the importance of Congress’s constitutional prerogatives,” Psaki tweeted.

After notifying Congress, the president can authorize military operations overseas. But combat military operations lasting longer than 60 days require a congressional declaration of war or authorized use of military force.

The White House says it will work with Congress to replace the AUMFs "currently on the books" with more narrow and specific framework to rein in "forever wars," a common criticism of broad war powers.

“We are committed to working with Congress to ensure that the authorizations for the use of military force currently on the books are replaced with a narrow and specific framework that will ensure we can protect Americans from terrorist threats while ending the forever wars,” Psaki said.

-ABC News' Molly Nagle

As the Senate debates the COVID-19 relief bill today, Biden will be making a final push for the package with a focus on the economy at the other end of Pennsylvania Avenue.

Biden receives a briefing from Treasury Secretary Janet Yellen at 2:15 p.m., and then participates in a roundtable on the $1.9 trillion "American Rescue Package" afterward at 3:15 p.m. Later, Biden and Harris receive a briefing on the pandemic at 5:30 p.m.

The White House COVID-19 Response Team holds a press briefing at 11 a.m., and White House press secretary Jen Psaki will brief at 12:30 p.m.

-ABC News' Sarah Kolinovsky

Biden is sending senior members of his team to the southern border to see first-hand the influx of unaccompanied minors crossing the border -- but beyond the reason and the existence of the trip, the White House is not revealing any additional details.

White House spokesperson Vedant Patel told ABC News in a statement that the president has asked these senior members of his team to travel there "in order to provide a full briefing to him on the government response to the influx ... and an assessment of additional steps that can be taken to ensure the safety and care of these children."

"Out of safety, security, and privacy concerns the date and time of this visit will remain confidential but the White House will provide a read out of the visit once it concludes," Patel continued.

-ABC News Chief White House Correspondent Cecilia Vega and Molly Nagle