It’s aggravating, but ...
If Lamb holds on and wins the special election, he still has to run again in November, does he not?
There will be a chance to field a better candidate. Lamb will have a record of voting with Nancy Pelosi 90+% of the time by then. And Democratic megadonora will not have the chance to concentrate all their money in a single race for a month.
Unless he waits until after November to show his true colors.