\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Within-Legislator Results (By Congress), 2009-2016 \label{TableFEByCongTT}}
\begin{tabular}{l*{4}{c}}
\hline\hline
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
                    &\multicolumn{1}{c}{Real Spending}&\multicolumn{1}{c}{Real Spending}&\multicolumn{1}{c}{Real Spending}&\multicolumn{1}{c}{Real Spending}\\
\hline
Electoral Security (MRP)&    -21154.6\sym{+}  &    -18335.8         &                     &                     \\
                    &   (11428.4)         &   (11541.7)         &                     &                     \\
[1em]
Electoral Security (Cook)&                     &                     &    -34012.3\sym{*}  &    -35690.0\sym{*}  \\
                    &                     &                     &   (15618.7)         &   (16085.6)         \\
[1em]
DW-Nominate (First Dim.)&                     &    195346.8         &                     &    191834.2         \\
                    &                     &  (258515.2)         &                     &  (257951.0)         \\
[1em]
Retiring            &                     &    -32775.6         &                     &    -37364.1         \\
                    &                     &   (25477.0)         &                     &   (25566.5)         \\
[1em]
House Tenure        &                     &     -5851.0\sym{+}  &                     &     -6702.8\sym{+}  \\
                    &                     &    (3332.6)         &                     &    (3455.9)         \\
[1em]
Majority            &                     &     10989.8         &                     &     12060.1         \\
                    &                     &    (8348.3)         &                     &    (8312.1)         \\
\hline
\(R^{2}\)           &       0.871         &       0.873         &       0.872         &       0.874         \\
Observations        &\num[group-separator={,}]{1770}         &\num[group-separator={,}]{1769}         &\num[group-separator={,}]{1770}         &\num[group-separator={,}]{1769}         \\
Number of House Members&\num[group-separator={,}]{693}         &\num[group-separator={,}]{693}         &\num[group-separator={,}]{693}         &\num[group-separator={,}]{693}         \\
Member Fixed Effects&         Yes         &         Yes         &         Yes         &         Yes         \\
Congress Fixed Effects&         Yes         &         Yes         &         Yes         &         Yes         \\
Member Time Trends  &         Yes         &         Yes         &         Yes         &         Yes         \\
\hline\hline
\multicolumn{5}{l}{\footnotesize Heteroskedasticity robust standard errors clustered at the member level in parentheses}\\
\multicolumn{5}{l}{\footnotesize \sym{+} \(p<0.1\), \sym{*} \(p<0.05\), \sym{**} \(p<0.01\), \sym{***} \(p<0.001\)}\\
\end{tabular}
\end{table}
