The chart above reflects the results of the newest Economist / YouGov Poll -- done between May 22nd and 25th of a national sample of 1,500 adults (including 1,248 registered voters). The margin of error for adults is 2.9 points, and for registered voters is 3.1 points.
It shows that once again the Republicans are at odds with the rest of America. While the Republicans don't want the January 6th investigation committee established, a majority of adults (56%) and registered voters (58%) do want a committee to investigate the riot at the Capitol.
Republicans are afraid the investigation would make their party look bad, possibly even exposing some members of Congress as being liable (and maybe even Trump). The public doesn't;t care about that. They want to know what happened and who is responsible.
If the GOP is able to kill this committee, it is not going to increase their popularity with the voters.