A redistricting battle over Louisiana's congressional map has spanned years and been before the Supreme Court twice already.

The justices will decide whether race or politics was the main factor as Louisiana lawmakers redrew districts for Congress.

WASHINGTON — The Supreme Court seemed closely divided Monday over a challenge to Louisiana ... the state, linking parts of the Shreveport, Alexandria, Lafayette and Baton Rouge areas.

Here's a look inside the courtroom for a case that could reshape Louisiana politics — and redistricting across the country.