One third-party candidate for General Assembly is officially on the Nov. 6 ballot, and another is officially off.

Republican candidate David McSweeney announced Monday that he changed his mind and will not go to court to challenge independent candidate Dee Beaubien's petition. The Illinois State Board of Elections last week upheld her place on the ballot for the 52nd House District.

But Republican candidate and Kane County Board Chairwoman Karen McConnaughay is again running unopposed for the new 33rd Senate District after the state board kicked Libertarian candidate Doug Marks off the ballot.

Only two of the eight General Assembly districts that include McHenry County under new legislative maps have opposed races. That translates to even fewer voters with choice because the contested districts – the 52nd House and the 26th Senate – share boundaries in the county.

McSweeney, of Barrington Hills, had argued unsuccessfully that Beaubien, widow of late Republican state Rep. Mark Beaubien, was ineligible as an independent because she signed the candidacy petitions of two Republican candidates.

"I still believe that her signing of partisan primary petitions disqualifies Dee from running as an independent. However, the voters of the 52nd District deserve the important debate that will occur over the next few months. The choice will be clear," McSweeney said in a statement.

The 52nd House District under the new map covers southeastern McHenry County, including Cary and Fox River Grove, eastern parts of Algonquin, Lake in the Hills and Crystal Lake, and parts of Lake, Cook and Kane counties

McSweeney won a three-way Republican primary, defeating Kent Gaffney, the Republican appointed to finish out Mark Beaubien's term after he died in June 2011, and fellow candidate Danielle Rowe. McSweeney challenged both of their petitions before the March primary – the state board sided with Gaffney, and McSweeney dropped his challenge against Rowe.

Marks, a Carpentersville village trustee, told supporters last month that he expected that a challenge would overturn his candidacy for the 33rd Senate. The state board did just that, concluding last week that many of the signatures on his petition came from outside the district.

Marks on his Facebook page said he was considering a write-in campaign but decided against it because of the cost, which he said is much more without his name on the ballot.

"I don't think it's going to be feasible to run as a write-in candidate," Marks said.

The 33rd Senate District under the new map covers Huntley, much of Lakewood, Crystal Lake and Lake in the Hills and western Algonquin, as well as parts of northern Kane County stretching south to Geneva.

In the contested 26th Senate District, Democratic challenger Amanda Howland is running against incumbent Republican Sen. Dan Duffy, R-Lake Barrington.

Candidates in the remaining McHenry County districts – the 63rd, 64th, 65th and 66th House and the 32nd and 33rd Senate – are running unopposed.