Mailman Jr. is a coward - he made a big mistake in not running for Senator and is now trying to blame other people for his screw up. President Trump would have support Kasuck against Sherrod Brown.
Look in the mirror it is your fault.
Kasich was Ohio governor when the 2016 Republican convention was held in Cleveland. It is customary for the host state governor and mayor to address the convention and welcome the delegates. Even if you are of a different party, it is an event that brings business to your city and state and that you want to put in their best light to attract future business conventions. I remember Coleman Young, mayor of Detroit, doing it very graciously for Reagan’s convention in 1980 even though his politics were opposite of the attendees. Kasich wouldn’t even acknowledge the 2016 convention when he was governor of Ohio yet he runs to Milwaukee licking the floor for the Democrats and their senile contender. Shows what kind of person he is.