Seriously. It's common knowledge. There's even a Wikipedia article about it .
Republican efforts to restrict voting following the 2020 United States presidential election
en.wikipedia.org
Following the 2020 United States presidential election and the unsuccessful attempts by Donald Trump and various other Republican officials to overturn it, Republican lawmakers initiated a sweeping effort to make voting laws more restrictive within several states across the country.[2][3] According to the Brennan Center for Justice, as of October 4, 2021, more than 425 bills that would restrict voting access have been introduced in 49 states"with 33 of these bills enacted across 19 states so far.[4] The bills are largely centered around limiting mail-in voting, strengthening voter ID laws, shortening early voting, eliminating automatic and same-day voter registration, curbing the use of ballot drop boxes, and allowing for increased purging of voter rolls.[5][6] Republicans in at least eight states have also introduced bills that would give lawmakers greater power over election administration after they were unsuccessful in their attempts to overturn election results in swing states won by Democratic candidate Joe Biden in the 2020 election.[7][8][9][10] The efforts garnered press attention and public outrage from Democrats, and by 2023 Republicans had adopted a more "under the radar" approach to achieve their goals.[11]