Tonight's primaries aren't completely settled and as I write this, Indiana still has to be called. But barring a major backroom deal with both committed and uncommitted super-delegates, Michigan and Florida recounts or incriminating photos of Barack Obama with Osama Bin Laden come to light, the Democratic party nomination has been Obama's for the last two months or so.
So with the Presidential race looking like it will be John McCain versus Barack Obama in the fall, it's interesting to note that this isn't the first time the two men have squared off.
The following exchange provides a glimpse behind the power politics of Washington and the character of each man:
Sen. Obama and Sen. McCain Exchange Letters on Ethics Reform | U.S. Senator Barack Obama