County commissioners elected Greg Lynn chairman and Doug Johnson vice chairman on Monday, but not without a tussle over the vice chairmanship.Johnson, who has the longest tenure on the board, nominated Lynn for the chairmanship, a position Lynn turned down last year because he was running for re-election to the board, which he won without opposition.New Commissioner Barry Penzel nominated Johnson for the top spot, citing his experience on the board and with the Nevada Association of Counties as tools for the upcoming legislative session.The voted ended up 4-1 for Lynn with Penzel voting against the nomination."Thank you for the …