thanks. that made me more curious, so I tracked down the story. It's from Daily Caller.
https://dailycaller.com/2019/10/22/republican-senator-ruled-out-impeachment-trump/
"The Caller contacted all 53 Republican Senate offices Monday and Tuesday to ask if senators would rule out voting to remove Trump from office, and received a variety of responses–seven senators explicitly rejected impeachment in their statement."
... near as I can figure from the Daily caller article, it looks like this:
7 = no
24 = no response\comments. ( their list didn't include Burr but the article says his office did not comment and Cruz would not commit)
11 = pointed to their previous statements
11 = said they would keep an open mind
Here's a CNN article on the daily caller article...I think they missed Cruz and Burr as no comments.
https://www.cnn.com/2019/10/23/politics/trump-impeachment-senate-daily-caller/index.html