Donald Trump Jr and Eric Trump have both lashed out at the Republican Party for what they view as weakness in the midst of a controversial election.
The United States is into its third day of vote counting and Joe Biden is inching towards the White House.
Biden has rapidly closed the gap with Trump in Pennsylvania and Georgia, and he is extending his lead in Nevada.
Trump's campaign has filed a number of lawsuits in a bid to contest the results of undecided states, and they have announced they will seek a recount in Wisconsin.