Yes, according to the #Axios post he is (here's) most of the post:
"Why it matters: House #Speaker #MikeJohnson's (R-La.) two-vote majority just got even smaller.
๐ โข #Kiley said he will still caucus with #Republicans for "administrative purposes" but noted that he's been a less-than-reliable vote for Johnson even as a #Republican๐.
[...]
๐The intrigue: Kiley stopped short of promising he'll be a reliable vote for Johnson.