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 ObamaObama: Cummings showed us 'the importance of checks and balances' Poll shows Michelle Obama would lead in New Hampshire if she entered 2020 Democratic race Obamas' first Netflix project nominated for Critics' Choice Documentary Awards MORE.

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

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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 AlexanderGOP braces for impeachment brawl McConnell tightlipped as impeachment furor grows GOP senator: 'Inappropriate' to discuss opponents, but impeachment a 'mistake' MORE (R-Tenn.) called the bill a “partisan political stunt” that includes a “class warfare tax.”

Sen. Elizabeth WarrenElizabeth Ann WarrenTrump says his Doral resort will no longer host G-7 after backlash Ocasio-Cortez: Sanders' heart attack was a 'gut check' moment Ocasio-Cortez tweets endorsement of Sanders 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 SandersBernie SandersOcasio-Cortez: Sanders' heart attack was a 'gut check' moment Ocasio-Cortez tweets endorsement of Sanders Ocasio-Cortez throws support to Sanders at Queens rally MORE (I-Vt.) and John McCainJohn Sidney McCainCummings to lie in state at the Capitol Elizabeth Warren should concern Donald Trump 'bigly' Lawmakers toast Greta Van Susteren's new show MORE (R-Ariz.) on Monday.

Senate Majority Leader Harry ReidHarry Mason ReidTrump thanks Reid for warning Democrats not to underestimate him Reid warns Democrats not to underestimate Trump Harry Reid predicts Trump, unlike Clinton, won't become more popular because of impeachment MORE (D-Nev.) said he wants to "expeditiously" work on the bill this week.