Idolatry would depend on whether you praying for trump or praying to trump praying for someone to win or to be prosperous is not idolatry praying to someone like trump to bless you with monitory prosperity is idolatry if you pray to him for healing or guidance of a spiritual nature is idolitry
Find a bible and read it pray for discernment and wisdom to understand what it says
I called it long ago with some of the Cruzbots who elevated Ted into some kind of messiah. They made him an idol when they said he was the “perfect conservative”.
When you make anything “perfect” other than God, you are making that person an idol.