In final public polling before tomorrow's Democratic Senate primary, Louisville businessman Bruce Lunsford has a large lead over opponent Greg Fischer.

According to a SurveyUSA/WHAS poll of 629 likely voters, Lunsford is polling 47 percent support to Fischer's 26. Four percent remain undecided.

Lunsford has been leading the seven-candidate Democratic field throughout the primary season, but today's numbers find him boosting his support from last week's SurveyUSA poll, which found him with an 18 point lead. 

The newest poll was conducted from May 16 to May 18. Between the last poll and this one, Fischer and Lunsford met in a contentious televised debate wherein Fischer accused his opponent of distorting his record of donating to Republican candidates.

Lunsford also recieved the endorsement of the Kentucky Enquirer on Friday. 

While the gap between the candidates changed as discussed, the two are both polling in higher absolute numbers since last week, when Fischer garnered 23 percent support to Lunsford's 41 percent.

Some of the raw increases appear to have been cut from the hide of perennial candidate David L. Williams, who is down three points from last week. At one time, Williams - who shares a name with the Republican president of the state Senate - was pulling 11 percent in statewide polls.

Respondents selecting "other" also dropped from 12 to 9 percent, while undecideds fell from 6 to 4 percent of all voters. 

Prospect physician Michael Cassaro stays at 3 percent in the poll, though the candidate started running television ads this weekend that could precipitate some movement. Campbellsville's James Rice holds on to the 3 percent he garnered last week, while Manchester Lawyer Kenneth Stepp stays at 2 percent.

David Wylie dropped one point, from 3 to 2 percent.