In answer to the actual thread-title question ; Yes, there is an outside chance that they COULD ! Those of the electorate who are likely to actually bother to USE their vote (which,in the interests of true democracy should,obviously,be compulsory ),are quite likely,in my opinion, to vote Lib Dem in order to show their contempt for, and dissatisfaction with,the other two major players.The extremist parties will also, I suspect,do much better than might otherwise have been expected,had the Blues and the Reds behaved with more selflessness,honesty,and decorum.