What breathtaking hypocrisy!
In the 2008 election in Detroit MI, Carolyn Cheeks Kilpatrick (yes, mother of the convicted felon and former Mayor of Detroit, Kwame (the King) Kilpatrick) was facing certain defeat in the Democrat primary due to her arrogance, condescending behavior toward her constituents, and her failure to perform her Congressional duties.
She knew she was going to lose to her challenger so what did she do? She hired another female to run as an "opponent" in the primary so that the anti-Kilpatrick vote could be split.
She was successful in her effort with her "primary plant". She squeaked by in the primary with the smallest possible margin necessary to win. But you never heard any complaints from the loony, liberal, left-wing Democrats, like House Majority Whip James Clyburn (D-S.C.).
Oh! But I forget. The rules only apply to opponents of the loony, liberal, left-wing Democrats, not to the loony, liberal, left-wing Democrats themselves.
After all, they are "the princes of the universe – here to be the rulers of us all" … (with apologies to Queen).