France will elect thousands of local councillors on Sunday as it holds the second round of departmental elections.
These elections are seen as a test case ahead of 2017’s presidential election.
Former president Nicolas Sarkozy’s UMP lead after last week’s first round. Marine Le Pen’s far-right National Front did not receive the votes expected, coming in second place.
French President Francois Hollande’s third placed Socialists are expected to lose control of many councils.
Mr Sarkozy said the first round showed “the French people’s profound desire for change”.
Opinion polls see the UMP and its allies winning nearly twice as many seats as President’s Hollande’s governing Socialist party.
Paris and Lyon, France’s two biggest cities, are excluded from Sunday’s election.