PoliticalMoneyLine has compiled the latest filings from the Democratic and Republican party committees (which take into account fundraising and spending through the end of May), and the numbers look a little something like this:

Over the last month (you can see the last set of numbers here), the Democrats have extended their cash-on-hand lead over the Republicans by about $800,000 dollars to over $9.1 million. Even when debts and obligations are taken into account, the Democrats' cash-on-hand lead still increased, though slightly more narrowly, by about $300,000 to roughly $2.25 million.

The Republican committees, particularly the NRCC but also the NRSC, aren't doing themselves any favors with their remarkably high burn through rates. In the cases of the congressional committees, the Democrats outraised or nearly outraised their Republican counterparts while being greatly outspent at the same time, helping increase their cash-on-hand lead.

One, of course, would like to see the DNC doing as well against the RNC as the DCCC and DSCC are doing against the NRCC and NRSC, respectively. Nonetheless, the fact that the RNC's cash-on-hand level at this point is less than half of what it was at the same point in 2005 ($15 million versus $32.7 million) and more than a quarter less than it was at the same point in 2003 ($15 million versus $21 million) while the DNC is running better than it did in 2003 and only slightly less well than it did in 2005 ($5.4 million in 2007, versus roughly $8 million in 2005 and roughly $4.2 million in 2004) makes one realize that things are certainly moving in the right direction.

Needless to say, these numbers do not ensure victory for the Democrats in 2008. That said, they are indicative of the fact that the Democrats have a great opportunity to build on the successes of 2006 this cycle and put more progressives into elective office.