[stefanbatory]

There were several members of the Sejm on the plane as well, right? Will there be new elections for the seats they held within that same 60 day window?

[lizol]

There will be new elections in case of the 3 senators, who perished. As in the Senate elections -in Poland - people vote for particular person (a bit lik in America.

It's different with the elections to the Sejm - as people vote for the list. OK, a particular person, but being on the on the list. And the seat goes to the one from the list, who gets the biggest number of votes. If he/she dies, resigns, etc. - the one with the next number of the votes takes his/her position. And there's no need to repeat the election.