Who is the biggest earmarker of them all? According to Taxpayers for Common Sense, Sen. Robert Byrd, D-W.Va., takes the cake, with 60 earmarks worth $123 million in the latest spending bill before the Senate. 

But he's hardly alone. The budget watchdog group has released its latest list breaking down the earmarks, lawmaker-by-lawmaker, in the $410 billion bill set to come up for a vote by the end of the day. The bill would fund the government through the end of the fiscal year, with an 8.5 percent increase over last year and billions of dollars in pet projects. 

Here's a breakdown of the top 20 earmarking senators and the value of their solo earmarks:

1) Sen. Robert Byrd, D-W.Va. -- $122,804,900 

2) Sen. Richard Shelby, R-Ala. -- $114,484,250 

3) Sen. Kit Bond, R-Mo. -- $85,691,491 

4) Sen. Dianne Feinstein, D-Calif. -- $76,899,425 

5) Sen. Thad Cochran, R-Miss. -- $75,908,475 

6) Sen. Lisa Murkowski, R-Alaska -- $74,000,750 

7) Sen. Tom Harkin, D-Iowa -- $66,860,000 

8) Sen. Jim Inhofe, R-Okla. -- $53,133,500 

9) Sen. Mitch McConnell, R-Ky. -- $51,186,000 

10) Sen. Daniel Inouye, D-Hawaii -- $46,380,205 

11) Sen. Patty Murray, D-Wash. -- $39,228,250 

12) Sen. Byron Dorgan, D-N.D. -- $36,547,100 

13) Sen. Pat Leahy, D-Vt. -- $36,161,125 

14) Sen. Dick Durbin, D-Ill. -- $35,577,250 

15) Sen. Bob Casey, D-Pa. -- $27,169,750 

16) Sen. Harry Reid, D-Nev. -- $26,628,613 

17) Sen. Arlen Specter, R-Pa. -- $25,320,000 

18) Sen. Herb Kohl, D-Wis. -- $23,832,000 

19) Sen. Chuck Schumer, D-N.Y. -- $21,952,250 

20) Former Sen. Pete Domenici, R-N.M. -- $19,588,625

Click here to read the full report from Taxpayers for Common Sense.