There are hundreds of plausible nominees for the title of America’s Second-Smarmiest Politician, but surely the top spot is un-contested. Americans of all political persuasions can come together in affirming one proposition: Public life would be improved by scrubbing Rep. Alan Grayson from it. This act of civic hygiene probably will be performed Nov. 2 by voters of Florida’s Eighth Congressional District. Polls indicate that a majority of them plan to deny Grayson, 52, a second term by electing his resonantly named opponent, Daniel Webster.