The following would be the apportionment of representatives based on the popular vote for Bush and Kerry in the 2004 election.
CO, FL, MN, OH, OR, PA, and WI would gain representatives in both the UUSA and the KSA.
CA is the only state to lose representation in both.
AL, GA, ID, IN, KS, KY, LA, MS, NE, NC, OK, SC, and TN would gain seats in the UUSA, while losing seats in the KSA.
IL, MD, MA, MI, NJ, and NY would lose seats in the UUSA, while gaining in the KSA.
While representatives are shown for DC, the apportionment is based on 435 seats for the 50 states. If you wish a 435-member body, remove the DC representative for the UUSA, and a IL and NJ representative for the KSA.
The average number of votes for the UUSA is 140,839; and for the KSA is 132,919.
Districting is left as an exercise for the reader.
Alabama 8 5
Alaska 1 1
Arizona 8 7
Arkansas 4 4
California 37 48
Colorado 8 8
Connecticut 5 6
Delaware 1 2
District of Columbia 1 2
Florida 28 27
Georgia 14 10
Hawaii 1 2
Idaho 3 1
Illinois 17 22
Indiana 10 7
Iowa 5 6
Kansas 5 3
Kentucky 8 5
Louisiana 8 6
Maine 2 3
Maryland 7 10
Massachusetts 8 13
Michigan 16 19
Minnesota 10 11
Mississippi 5 3
Missouri 10 9
Montana 2 1
Nebraska 4 2
Nevada 3 3
New Hampshire 2 3
New Jersey 11 14
New Mexico 3 3
New York 20 30
North Carolina 14 11
North Dakota 1 1
Ohio 20 20
Oklahoma 7 4
Oregon 6 7
Pennsylvania 20 22
Rhode Island 1 2
South Carolina 7 5
South Dakota 2 1
Tennessee 10 8
Texas 32 21
Utah 5 2
Vermont 1 1
Virginia 12 11
Washington 9 11
West Virginia 3 2
Wisconsin 10 11
Wyoming 1 1