So they didn't have the numbers to create a coalition with Labour but they shouldn't have formed one with the Conservatives? What other options were there?
Or, if the Labour party had made the right Miliband their leader then it is unlikely Cameron would have been in power to have the referendum.
The biggest impact Clegg had was on the Lib Dems. They should have made it clearer to the voters what they achieved when in government - watering down the Tories' more extreme policies etc - and not taken all the shit that the Conservatives threw at them.
They could have just let the Tories rule as a minority, voted against Tuition fees and Austerity measures and there would likely have been another election in the Autumn.
What was clear at the time was there was no great evidence of the public wanting the Tories to be elected as they failed to win a majority against all the odds.
What happened in 2015 was the Lib Dem vote totally collapsed and before where they'd win seats from the Tories due to tactical voting, this time voters reverted to type and supported Labour or even Green.
I agree 100% about the Labour leadership election and said so in a later post.
The 2010 election, the Labour leadership election after Gordon Brown resigned and Brexit were all a consequence of Nick Clegg