A month ago, Butkevičius enjoyed a positive rating of 44%, while 30.9% viewed him negatively. Currently, the figures are 40.2% and 35.3%, respectively, according to a Vilmorus survey commissioned by Lietuvos Rytas and conducted on July 1-10.
Butkevičius is still the second most popular politician, after President Dalia Grybauskaitė, but Ramūnas Karbauskis, leader of the Peasant and Greens Union, is almost catching up with him.
The balance of negative and positive ratings, 4.9%, puts the prime minister is in the tenth place overall.
The latest survey shows that the Social Democrats remain the most popular party in the country, but its popularity has edged down from 16.2% in June to 14.2% this month.
It is followed by the Peasant and Greens Union, 12%, and the conservative Homeland Union, 10.8%.
The Liberal Movement, which was hit by corruption allegations against its former leader Eligijus Masiulis, has recovered some of its popularity over the last month. 5.9% of the respondents said they would vote for the party, compared to 3.6% in June.