The Republican Party strongly supports freedom of religion. They protect the right of religious institutions to not perform marriages that disagree with their belief systems. Republicans do not support giving immigrants a religious test before allowing them to enter the country, despite polls showing that they tend to have more negative views on Muslims than Democrats do. Overall, Republicans are associated with more religious voters, especially evangelical Protestants. Republican Party Platforms tend to mention religion and faith more often than Democratic Party Platforms, and many Republicans are concerned that Democrats are trying to wage a war on religion and religious freedom.