Please enter a valid email.

Please enter a valid email.

Please enter a valid email.

Please enter a valid email.

Please enter a valid email.

Please enter a valid email.

Please enter a valid email.

Why it matters: The ruling is another blow to President Trump and his campaign as they seek to discredit election tallies in Pennsylvania and other key swing states, citing baseless and unproven claims of widespread voter fraud.

He made the announcement hours after a judge in his home state dismissed a Trump campaign lawsuit that sought to block the certification of Pennsylvania's election results.