Cornyn voted with Cruz to defund ObamaCare. There seems to be confusion with this and another vote.
McConnell voted against it. Dementia?
All 45 Republican Senators voted for the Cruz/Lee Amendment to defund Obamacare but it failed because all Democrats voted against it.
The Bill that Cornyn and 19 others supported, including McConnell, was the Continuing Resolution which does include funding for Obamacare. Five of the nineteen are up for re-election in 2014: Alexander, Cochran, Collins, Cornyn and McConnell.