Romney says NO...

[crickets]

22. Chuck Grassley and Lindsey Graham have said in the past:

Link to tweet

In July, Chuck Grassley said he would not process a nomination to the Supreme Court in 2020 if he were still chairman of the Judiciary Committee.

Grassley is no longer chair. Lindsey Graham is.

https://qctimes.com/news/state-and-regional/govt-and-politics/grassley-ernst-split-on-how-to-proceed-if-supreme-court-vacation-occurs-before-election/article_539416db-0cf9-57bd-8204-110e764a2b49.html

“That’ll be up to his decision because he’s chairman now, but I would have to tell him that I wouldn’t have a hearing,” Grassley said. Even if Graham would hold a hearing on a Trump nominee this year, there’s no guarantee it would come to the floor before the election, Grassley added.

Link to tweet

LINDSEY GRAHAM on March 10, 2016:

“I want you to use my words against me. If there’s a Republican president in 2016 and a vacancy occurs in the last year of the first term, you can say Lindsey Graham said let’s let the next president, whoever it might be, make that nomination."

Link to tweet

[Oct 2018] Sen. Lindsey Graham justifies his treatment of Merrick Garland: "If an opening comes in the last year of President Trump's term, and the primary process has started, we'll wait to the next election"

For whatever it's worth, there's some past background on how two other Senators have stated they would behave.