By Thomas McKinless

Sen. Tom Udall gave Sen. Amy Klobuchar a cookie as a thank you gift and Sen. Thom Tillis repeated his Valentine’s Day stunt from last year by showing a pink-scribbled card for his wife on the Senate floor. But it wasn’t all love in D.C. this week as Sen. Chuck Grassley groused about being interrupted for Majority Leader Mitch McConnell’s announcement that President Donald Trump would be declaring a national emergency, and Trump geared up for likely legal challenges to his wall-building aspirations.