The cases involve so-called faithless electors who did not vote for Democratic candidate Hillary Clinton in the 2016 Electoral College even though she won the popular vote in their states. But in 2016, 10 of the 538 electors voted for someone else.
Note the deception from Reuters. It doesn't say that how many of the 10 electors voted for Mrs. Bill Clinton instead of Donald Trump who had won their state's popular vote. They want you think that all of the changed votes were from Clinton to Trump, but in fact the changes went both ways.
Mrs. Bill Clinton urged the electors to change their votes but in the end, hilariously more changed away from her than toward her.
(Washington State) Despite Clinton's victory, four Democratic electors defected. Three voted for Colin Powell, making him the first African-American Republican to receive electoral votes, while a Native American activist cast his vote for Faith Spotted Eagle, making her the first Native American to receive an electoral vote for president.
(Texas) Trump earned 38 pledged electoral votes, but lost two to faithless electors One elector voted for Ron Paul for president and Mike Pence for vice president, while another voted for John Kasich for president and Carly Fiorina for vice president.
(Hawaii) Hillary Clinton received 3 electoral votes. One elector voted for Bernie Sanders for president and Elizabeth Warren for vice president.
(Maine) Maine distributes 2 EVs based on the statewide vote and 1 EV for each congressional district's vote. (Not faithless electors).
This tempest in a teapot is just another attempt at the Dems to increase the power of their large urban base and decrease the strength of the rural vote. The same battle has been ongoing since the 1800’s.
I believe that in each case, the delegates were changing their vote in a mild protest to each party's nominee.