Senators who find it hard to explain why they didn't stand with Rand.

HuffPo inquires:

"I don't know, there's a lot of debates I don't join that I agree -- I've got stuff to do and was doing a lot of other things," Sen. Sherrod Brown (D-Ohio) told HuffPost when asked about his whereabouts the day before. "I think the question should be answered. I think [Sen.] Paul was generally right on it."

Sen. Bernie Sanders (I-Vt.) [said] "I'm working right now on many, many, other issues... Presumably you go down on the floor because you believe in something"... though he argued that the method Paul used to raise his questions and his timing weren't "particularly constructive."

Weak.