The channel remained closed Monday, read more about the spill here.
In speeches, Abbott has said, "Voter fraud is real, it must be stopped, and I will take my case all the way to the Supreme Court." Learn more about his plans to implement Texas's strict voter ID law here.
Obama met with Chinese President Xi Jinping at the summit, but White House staffers said China had not committed to placing sanctions on Russia. Read more about the meeting here.
Silver said President Obama's diminishing popularity and Republicans's "credible candidates" had all reduced Democrats's chances of holding on to the Senate, read more here.