The House will consider the $20.9 billion Agriculture appropriations bill for fiscal 2015. It includes funding for nutrition assistance programs and waives school lunch nutrition standards backed by first lady Michelle ObamaMichelle LeVaughn Robinson ObamaMichelle Obama celebrates success of ‘Black Panther’ How textbooks shape teachers — not just their students Michelle Obama dedicates Valentine's Day playlist to Barack Obama MORE.

The White House issued its first veto threat against the measure — its first on a 2015 appropriations bill.

The legislation will be considered under an open rule, meaning members can offer an unlimited number of amendments. Debate is expected to go late into the night, as it did earlier this week when the House considered the Transportation, Housing and Urban Development (THUD) appropriations bill.

The Senate starts at 9:15 a.m. on Wednesday and at 10 a.m. it will take the first procedural vote to advance a student loan refinancing bill.

It is unlikely that enough Republicans will join Democrats to advance the measure, which is paid for by raising taxes on millionaires. Senate Health, Education, Labor and Pensions Committee ranking member Lamar AlexanderAndrew (Lamar) Lamar AlexanderOvernight Health Care: Trump health chief backs CDC research on gun violence | GOP negotiators meet on ObamaCare market fix | Groups sue over cuts to teen pregnancy program GOP negotiators meet on ObamaCare market fix 30 million people will experience eating disorders — the CDC needs to help MORE (R-Tenn.) called the bill a “partisan political stunt” that includes a “class warfare tax.”

Sen. Elizabeth WarrenElizabeth Ann WarrenTrump's SEC may negate investors' ability to fight securities fraud Schatz's ignorance of our Anglo-American legal heritage illustrates problem with government Dems ponder gender politics of 2020 nominee MORE (D-Mass.) authored S. 2432, the Bank of Students Emergency Loan Refinancing Act, which would allow more than 25 million people to refinance their student loans to today’s lower interest rates of less than 4 percent. She paid for the bill with the “Buffet Rule” — a minimum 30-percent income tax payment from people who earn between $1 million and $2 million.

The Senate could also begin work on a bipartisan bill that aims to fix dysfunctions within the Department of Veterans Affairs healthcare system by holding officials accountable and providing veterans with more choices. 

That deal was introduced by Sens. Bernie SandersBernard (Bernie) SandersDems ponder gender politics of 2020 nominee 2020 Dem contenders travel to key primary states After Florida school shooting, vows for change but no clear path forward MORE (I-Vt.) and John McCainJohn Sidney McCainLawmakers worry about rise of fake video technology Democrats put Dreamers and their party in danger by playing hardball Trump set a good defense budget, but here is how to make it better MORE (R-Ariz.) on Monday.

Senate Majority Leader Harry ReidHarry Mason ReidWATCH: There is no Trump-Russia collusion and the media should stop pushing this The demise of debate in Congress ‘North by Northwest,’ the Carter Page remake MORE (D-Nev.) said he wants to "expeditiously" work on the bill this week.