This article published by Real Clear Politics is written by John Curiel. Here is an excerpt:

The House of Representatives and Senate face an impasse over a host of issues, perhaps most importantly of all H.R. 1, also known as the For the People Act, an elections and redistricting-reform bill sponsored by congressional Democrats. H.R. 1 reflects a long-held desire by redistricting-reform activists to reassign the task of redistricting congressional districts from state legislatures to independent commissions. Organizations such as Common Cause argue that the move to independent commissions would remove individuals with the most vested interests from the process, preventing them from putting their own personal and partisan goals ahead of community interests. 

Research suggests that these independent commissions draw more competitive districts than those drawn by state legislatures. Leading constitutional law expert Richard Pildes makes a strong case that more competitive districts can, in turn, provide the incentives for representatives to take more moderate positions, thereby lessening polarization within Congress. Redistricting definitely has a role to play in potentially depolarizing the House, but the nationalization of American politics, the power of primaries, and single-member districts might lead to self-reinforcing of political polarization. Solving redistricting at this point might not be sufficient. 

The long-held theoretical means by which gerrymandering causes polarization is by removing the electoral incentive for representatives to moderate their positions. With a district solidly in favor of one party, representatives need only concern themselves with their primary electorate. Pildes makes a similar argument, and my own research confirms that it is easier for challengers to adapt their ideological positions to appeal to the primary electorate relative to the incumbent.

Read the full article through this link. Also see related Democracy Chronicles articles like those on Redistricting, Election History, or even seen our section on American Democracy.