Story highlights Scott Walker headlined a school choice event with former Florida Gov. Jeb Bush Monday afternoon

He also joined Florida Sen. Marco Rubio at a private fundraiser the same day

Waukesha, Wisconsin (CNN) Seven weeks after Wisconsin Gov. Scott Walker abruptly ended his presidential campaign, he's now getting attention for his potential endorsement of one of his former rivals.

He appeared with two of them on Monday, as the Republican field descended upon Walker's home state of Wisconsin for the Fox Business debate on Tuesday in Milwaukee.

Walker headlined a school choice event with former Florida Gov. Jeb Bush Monday afternoon, the same day he joined Florida Sen. Marco Rubio at a private fundraiser for Wisconsin Assembly Speaker Robin Vos.

It's the most national attention Walker has received since he pulled the plug on his campaign on September 21 after finding himself at the bottom of the polls, despite once being a front-runner.

Walker spokesman Tom Evenson said the governor doesn't have any plans to make an endorsement at this time.

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