It’s the celebrity effect, you are pitting your will against the will of their potential fans and supporters as well as them… But likewise you may also be adding your will to the long list of the person’s haters. So it depends, if they are hated by enough people, more than support them, you might actually find this quite easy. 
Sounds good. The more people you can get to join you the better. The power increases exponentially when you add intent from more people.
I do not advise taking any energy from other humans, especially politicians, into yourself unless you’re very, very good at “filtering”. That’s gross, and if they’re old or have a disease you’ll harm yourself when you bring that shitty energy into you.