back (someone) for (something)
(redirected from backing him for)back (someone) for (something)
To support someone in some pursuit, often election to an office. I'm backing Caroline for student council president—here, have a button!
See also: back
back someone for something
to support or endorse someone for something, such as a public office. We all back Tom for president. I am backing Jane for treasurer.
See also: back