If you do a little more work on your campaign page to engage people that will help.
It may be better to scrap this one and re do it.
Give them reasons why they should pledge, a bit more of a story, maybe about you/your background.
Do some bullet points about why people don't like Trump.
At the end of the day your market is those who don't like the President so why not include excepts of Trumps tweets and news articles that have infuriated people. Relevant stuff that's going on with Russia/Trump to make people remember and think 'oh yes that is awesome got to have that!' maybe include a printed card with the worst sayings Trump has come up with etc.
This kind of stuff re confirms why you are making the Trump butt sharpener!
I hope this helps in some way