I think the Lib Dems (and especially Chris huhne) throw the word "smear" around too easily.
What Damian McBride did was smearing. What Alastair Campbell did to David Kelly was smearing. What the Sun did to Gordon Brown over the misspelt condolence letters was smearing. Attacking policy or examining political donations is not smearing.
Only the Daily Mail actually smears Clegg today. I think all the other stories are very fair, though cynically timed.
If you look at today's front pages
news.sky.com/skynews/Home/UK-News/The-Papers---The-Newspaper-Front-Pages-Thursday-April-22-2010/Medi a-Gallery/201004315612479?lpos=UKNewsLeftPromoRegion0&lid=GALLERY15612479ThePapers-TheNew spaperFrontPages%2CThursdayApril22%2C_2010
The Daily Mail is disgusting, but then what do you expect. I do think we shouldn't apologize and feel ashamed for being British, but we shouldn't bring up the war all the time either. The Nazi slur is way over the top.
The Telegraph has a genuine story. Private bank accounts, lobbyist donations, and political parties are definitely best kept apart.
The Independent has an interview with Nick Clegg.
The Express attacks the Lib Dems, but on policy.
The Sun attacks the Lib Dems, but on policy.
The Guardian talks about the Tories, homophobia, and links in the EU - and has a feature on Brown's campaigning style.
The Times has an interview with David Cameron.
The FT has a story about how Ken Clarke is being used against the Lib Dems, as well as the usual business/markets headlines.
The Wall Street Journal Europe ignores the election on its front page.
The Metro attacks the Lib Dems, but on policy.
The Mirror attacks David Cameron for his hairstyle (I think).
The Star says that Gordon Brown has quit (huh?)
Of all those attacking the Lib Dems, only the Mail is totally unfair I think. The Mirror's story about Cameron also looks silly, as does the Star's story about Brown.
Obviously the timing of the stories is deliberately calculated to sell as many papers as possible though, by being on the morning of the debate.