The group of Democrats, mainly from Washington state and Colorado, are now seeking to persuade Republican electors to vote against Trump and support a third party, such as Mitt Romney or John Kasich, in spite of their oaths as well as local laws in some states, the Politico online magazine reported Tuesday.
"I do think that a byproduct would be a serious look into Electoral College reform," Michael Baca, the group's leader and a Democratic elector from Colorado, told the news outlet.
In case enough electors reject Trump and the Electoral College fails to choose a president, the final decision will be up to the House of Representatives.
Another elector said that in case this stage is reached, the process would create enough political turmoil to raise the issue of abolishing the Electoral College.
On November 8, Trump won the US presidential election by gaining a major electoral lead over his rival despite Clinton's lead in terms of popular votes. The inauguration of the US president-elect is to take place on January 20 after the Electoral College vote.