The federal government has "failed its duty" to communities on the southern border over the past 40 years, Sen. Kyrsten Sinema (I-Ariz.) said during an interview on CNN's "State of the Union" that aired Sunday.
Driving the news: Sinema made waves in Congress this week by announcing that she was leaving the Democratic Party and registering as an independent mere days after Democrats secured a 51-49 majority in the Senate.
