The New York Times covered the launch of Republican Voters Against Trump. Reid J. Epstein writes:
Republican groups are likely to spend big ahead of November, as well, but it is difficult to make direct comparisons between the Democratic organizations and their Republican counterparts. Democratic and progressive organizations often announce their spending plans before they have raised the funds, which often come in from small donors. Republican groups that rely more on major donors tend not to telegraph their plans.
The pro-Biden outside money originates from nearly a dozen organizations that include climate groups, labor unions and traditional super PACs. There are left-wing groups like MoveOn and moderate Republicans like Republican Voters Against Trump.