Gaza War Affects Netanyahu's Support
Indictment expected on Thursday.
Netanyahu condemned violent protesters near home earlier this month.
70-year-old woman indicted for assassination plot earlier this year.
Suspect planned to buy gun and shoot Netanyahu three times after surrendering.
Charges include conspiracy to commit terror and aggravated murder.
Netanyahu's support declining due to two-year Gaza war.
Families urge action for 48 hostages, 20 believed alive.