Kanye is a Democrat, but Kim Kardashian is a Republican. Kardashian actually describes herself as a "liberal Republican".
I could totally see Kanye being the next Donald Trump. No one would've guessed that Trump would run and be the GOP front runner a year ago. People thought of him as insane and crazy.
Both Kanye and Donald are narcissistic/egotistical celebrities who went through serious financial struggles at one point in their lives and do and say what they want.
Are you sure Kim Kardashian is a Republican?