No matter who wins the presidential race, Oscar Arias will not have a majority of representatives from his party in the new Assembly. According to the latest results, parties will have these numbers in the new Legislature:

PLN - 25
PAC - 18
Libertarian Movement - 6
PUSC - 4
PASE - 1
Restauración - 1
PUN - 1
Frente Amplio - 1

This means that the eventual winner of the presidential race will need support from one or more parties in order to pass any legislation.  The 2 most urgent items in the legislature will be the CAFTA trade agreement and a fiscal reform package.  PAC is opposed to passing CAFTA as is, so the lines are drawn.  The current fiscal reform bill is likely to fall by the wayside as well, in favor of a temporary measure while a new tax policy or fiscal reform is proposed or negotiated. 

PAC has already called for a revival of the campaign reform bill, citing the fact that this election was the most expensive in history and indirectly blaming Arias.  

These result spell a definite end to the two-party system with PUSC and PLN dominating.  The question to be answered over the next 4 years will be does PAC replace PUSC in a new 2 party system, or will the Libertarian movement and/or PUSC be able to make advances and establish a system with 3 or 4 strong parties participating.