Via CNN, voting in favor of the Constitution are:
North Carolina Sen. Thom Tillis (R)Here’s a bit of what he wrote in a Washington Post op-ed announcing the decision:
“As a U.S. senator, I cannot justify providing the executive with more ways to bypass Congress. As a conservative, I cannot endorse a precedent that I know future left-wing presidents will exploit to advance radical policies that will erode economic and individual freedoms. These are the reasons I would vote in favor of the resolution disapproving of the president’s national-emergency declaration, if and when it comes before the Senate.”
Maine Sen. Susan Collins said last week she would support the disapproval measure.)
Alaska Sen. Lisa Murkowski — has now come out definitively in favor of the resolution, telling reporters Tuesday that she will support it.
Possibly voting in favor of the Constitution are:
Cory Gardner (Colorado): Gardner represents a state Trump lost in 2016 and is a major target for Democrats in 2020. He hasn’t declared a position yet on the resolution but did say last week that “Congress is most appropriately situated to fund border security.”
Martha McSally (Arizona): McSally lost the 2018 Senate race to Sen. Kyrsten Sinema (D) but was appointed to fill the vacancy caused by Sen. Jon Kyl’s (R) resignation in mid-December. That makes McSally potentially vulnerable as she seeks the remainder of Kyl’s term in 2020.
Joni Ernst (Iowa): The Hawkeye State went for Trump in 2016 but moved strongly back to Democrats in the 2018 midterms.