[JURIST] Marwan Barghouti, currently in an Israeli jail for involvement in terrorism, will seek the presidency of the Palestinian Authority, according to a top official in the ruling Fatah movement speaking Thursday. Barghouti is widely considered to be the most electable Palestinian candidate for the January 9th election. His candidacy would deepen an internal power struggle within the Fatah movement between the old guard that returned from exile with Arafat and a younger generation of activists who grew up in the West Bank and Gaza Strip. Fatahs old guard nominated interim leader Mahmoud Abbas earlier this week. AP has more.