“ Is the Republican Party hierarchy serious about winning the White House and both Houses of Congress?”
Not a chance.
Would not matter if this bunch is serious or not - they are incompetent and inept even if they are as serious as you can get. The effect will be the same.
“...Is the Republican Party hierarchy serious about winning the White House and both Houses of Congress?...”
Not at all!! And it’s kind of a rhetorical question when you consider how little they did to GET Trump into the WH, or to keep him there once elected. Many ‘Republicans’ actually worked with enemies of Conservatism to have Trump impeached.
They did NOT support him in his campaign and did not support him in his administration ....it is shameful They are comfortable with the status quo whereby personally beneficial ‘deal making’ supersedes all else.