On 20 February 2013, Klaus Iohannis joined the PNL, announcing this during a press conference with Crin Antonescu.
In February of 2013 he joined the PNL.
In February of 2013 he joined the PNL.
Make this simpler: On 20 February 2013, Klaus Iohannis joined the PNL, announcing this during a press conference with Crin Antonescu. Output: