The naturalization act of the 1790 weekend support for democratic-republicans by

The act meant that it would take longer time for immigrants to gain several rights like right to vote. This led the weakening of support for Democratic-republicans.  

Explanation:

The naturalization Act of 1790 offered citizenship to any foreign white person who had been living in the US for two years. This Act was racial because it left out women and blacks.

The act implied that blacks and Asian immigrants weren’t eligible to be naturalized. It was clear that immigrants were left out but the Act told nothing about the status of non-white American born people. The naturalization Act of 1790 weakened the support for Democratic-republicans.