There shall be two parties and each voter will have a choice of voting for the selected candidate of his party, whether Democratic or Republican. The only thing different is that the majority of the voters will also be able to vote for candidates who have no ties or obligations to political donors but share the same sentiments as they do.
And may I suggest that nowhere in the Constitution is there a mention of a party. Shouldn't Representatives be chosen because of what they believe is right. Democracy is a miracle of many facets.
I went through the Constitution very carefully. If you find any clause in the Constitution that would prevent a simple law from being enacted to establish what is suggested, I would appreciate to have that pointed out. I do agree, however, if a law were passed to enact a change in electing Representatives to the House, it could not become functional until after all States except any with only one seat in the House have been re-districted. That would require one intervening election. However, that could be provided for in the bill.
I do agree with your comment of a constitutional amendment as far as the Senate is concerned. But the Senate could be left untouched.
I also agree with you to get rid of the filibuster, and that might improve the efficiency of the Senate. Also, I don't know but my thought was that by reducing the number of Districts in each State, gerrymandering might become more complicated. And, as I said, redistricting would in States with more than one seat would be required.