France's ruling centre-right party opened its campaign to persuade voters to back the EU's proposed constitution in a May referendum and repeated its opposition to Turkey's possible EU membership. Under the slogan "Europe deserves us to say yes", Nicolas Sarkozy, leader of the Union for a Popular Majority (UMP), began the campaign for the referendum. A "yes" may prove difficult, with voters  unhappy with the government's cost-cutting reforms and amid concern over a sluggish economy, rising unemployment and Turkey's EU bid. (Reuters, 6.03)