Midnight in the Garden has spawned a second prequel story. The first one is Masters of the Game ... Palpatine survives his last major political blunder, wins his first Senatorial election, and secures his place in the Republic Senate.
Now comes What Lies Beneath: Palpatine uses the issue of slavery in the Republic to make overtures to Senators like Mon Mothma and Bail Organa, position himself as an ally, and enact damaging legislation that will force the Jedi under the Chancellor's legal authority.
Of course, this is right where he will want them in years to come.