Not sure if it makes much difference now.
Kasich is in 9th place at 1% in Iowa and he's in 5th place with 7% in New Hampshire -- both of them from the Fox News Poll
Maybe it gives him a slight bump-
A Kasich adviser tells me Sen. Rob Portman is set to endorse tomorrow. A blow to Bush? Portman served under George W. @ OMB + as trade rep— Sara Murray (@SaraMurray) January 9, 2016