RebE > Biden is more religious than Trunp.
He does often sound sincerely religious. But you have to remember that Biden spent his life in politics, focusing on messaging and scheming. He can recite slogans smoothly and knows which segments of population he addresses. Trump is focused on action. Was there anything religious in his strengthening of Yerushalaim, or was it purely political calculation?
We have midrashim about various rulers – Alexander, Cyrus, and worse ones, relating to Hashem in some way, especially when their actions affect Jews and Eretz Israel.
When thinking about that, you probably need to think about people when they are at their best, not their worst. When Trump is for his own ego, or when Biden pretends that he couldn’t find vaccines under the table in the oval office, there is nothing religious there.