\begin{table}[htbp] 
\centering 
\caption{\bf NP-Score of state legislators who run vs. those who do not.} 
\label{tbl_summary_runners_nonrunners_33} 
\begin{tabular}{lcrcr} 
\toprule\toprule 
& \multicolumn{2}{c}{Democrats} & \multicolumn{2}{c}{Republicans} \\ [.05in] 
            & Mean        &          & Mean       &          \\ 
Item        & NP-Score    & \# Obs.  & NP-Score   & \# Obs.  \\ [.01in] 
\midrule 
Ran for Congress  & -0.905 &    306 &  0.853 &    404 \\ [.01in] 
Did Not Run       & -0.777 & 35,171 &  0.743 & 36,199 \\ [.01in] 
\bottomrule 
\end{tabular} 
\end{table} 
