THE REAL PROBLEM WITH THE U.S. SENATE

I don't think the filibuster is the main problem although that rule does need some adjustments.  Here's the 2010 Census population data:

Wyoming	563,626
Vermont	625,741
North Dakota	672,591
Alaska	710,231
South Dakota	814,180
Delaware	897,934
Montana	989,415
Rhode Island	1,052,567
New Hampshire	1,316,470
Maine	1,328,361
Hawaii	1,360,301
Idaho	1,567,582
Nebraska	1,826,341
West Virginia	1,852,994

These 14 states have a total population of 15,578,334 which would put them between 4th place Florida (18,801,310) and 5th place Illinois (12,830,632).  The problem: these 14 states have 28 U.S. senators but Florida or Illinois have only 2 each.  Worse, California has 37,253,956 and only 2 senators.