No, the White House or any political group would not be wise to ignore any group that has members that vote. It is good to remember that while the original settlers in the US may have been "Christian," many Jews also moved here besides the Native Americans that were here first and the Asian groups that came here, Chinese and Japanese for starters.
This is a country that was founded by those seeking freedom of religion, not just the freedom to practice Christianity in its many forms.
Blondie