The Nevada state Senate will remain in Democratic control following Tuesday's election after three Republican candidates won victories in five closely contested races, one short of the number needed for a change of power.Democrats won two of the five races in play for control of the Senate, maintaining the 11-10 status quo over Republicans.Republicans needed to win four of the five contested seats to achieve an 11-10 edge and win control of the Senate. Democrats have controlled the Senate since 2008.But Republicans won only three of the five races, all of which were closely contested.The results ensure that both the …