He already has. Anyone who supports Trump is not a conservative and never has been period. They may think they are, the same way Lindsay Graham thinks he is, but they're not. And I won't forget who they are.
https://en.wikipedia.org/wiki/List_of_Donald_Trump_presidential_campaign_endorsements,_2016State Governors
Current
Greg Abbott, Texas (previously endorsed Ted Cruz)[347]
Phil Bryant, Mississippi (previously endorsed Ted Cruz)[337]
Mary Fallin, Oklahoma[348]
Nikki Haley, South Carolina (previously endorsed Marco Rubio, then Ted Cruz)[349]
Asa Hutchinson, Arkansas (previously endorsed Mike Huckabee, then Marco Rubio)[350]
Pat McCrory, North Carolina[351]
Mike Pence, Indiana (previously endorsed Ted Cruz)[352]
Pete Ricketts, Nebraska[353]
Brian Sandoval, Nevada (previously endorsed John Kasich)[354]
Scott Walker, Wisconsin (former 2016 presidential candidate) (previously endorsed Ted Cruz)[355]
Former
Jim Gilmore, Virginia (former 2016 presidential candidate)[356]
Mike Huckabee, Arkansas (former 2016 and 2008 presidential candidate)[357]
Jon Huntsman, Utah (former 2012 presidential candidate)[358]
Bobby Jindal, Louisiana (former 2016 presidential candidate) (previously endorsed Marco Rubio)[359]
Tim Pawlenty, Minnesota (former 2012 presidential candidate) (previously endorsed Marco Rubio) [360]
Rick Perry, Texas (former 2016 and 2012 presidential candidate) (previously endorsed Ted Cruz
U.S. Senators
Current
Kelly Ayotte of New Hampshire[326]
Richard Burr of North Carolina[327]
Tom Cotton of Arkansas[328]
Ron Johnson of Wisconsin[329]
John McCain of Arizona (previously endorsed Lindsey Graham) (also nominee for President in 2008)[330]
Mitch McConnell of Kentucky, Senate Majority Leader (previously endorsed Rand Paul)[331]
Rob Portman of Ohio (previously endorsed John Kasich)[332]
Tim Scott of South Carolina (previously endorsed Marco Rubio)[333]
Dan Sullivan of Alaska[334]
Rand Paul of Kentucky (former 2016 presidential candidate)[335]