Depends. The dems are not not as good at "Party line politics" as the GOP. (this is both a good and a bad thing.)
Old-School democrats will be opposed; New-generation democrats will be in favor. Recent political events have been strongly demonstrating that old-school democrat tactics are losing popular favor; This is why nearly all current democrat presidential candidates have re-aligned with Sanders' views on modern politics, to varying degrees. (Some favor more of the oldschool methodologies to cater to older democrat voters that are unwilling or at least, unlikely, to support radical changes and favor incremental slow ones. Others see the handwriting on the wall as concerns climate change, the trajectory the economy is in as relates to wealth inequality as we careen through another gilded age and see the need for another New-Deal type solution, which necessitates radical action.)
Congress critters and senate seaters will behave as they always have; they will seek whatever garners them the most popular support and or pork for their home territory and constituency (EG, whoever is buttering their bread, be it industry, or actual popular support, depending on region and regional politics.) Since radical changes are **CERTAIN** to upset the apple cart vis-a-vis industry, expect heavy blowback in heavy industrial states, and those that have a heavy invested interest in fossil fuel production, or industries that produce lots of greenhouse gas emmisions, and or-- states that cater to wealthy industries. (California is a crapshoot-- hard to say if the congress critters and senate seaters there will capitulate to silly valley lobbyists, or if they will vote to enact sweeping changes that will deal pretty substantial blows to the oligarchs that have operations there.)