\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Within-Legislator Results (By Quarter), 2009-2016 \label{TableFEByQMRP}}
\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)&     -2482.7\sym{*}  &     -2500.8\sym{*}  &                     &                     \\
                    &    (1138.0)         &    (1139.5)         &                     &                     \\
[1em]
Electoral Security (Cook)&                     &                     &     -5672.1\sym{***}&     -5437.6\sym{***}\\
                    &                     &                     &    (1660.8)         &    (1635.1)         \\
[1em]
DW-Nominate (First Dim.)&                     &     26547.1\sym{*}  &                     &     23284.6\sym{*}  \\
                    &                     &   (11264.4)         &                     &   (11499.2)         \\
[1em]
Retiring            &                     &     -1260.9         &                     &     -1692.0         \\
                    &                     &    (1980.3)         &                     &    (1953.7)         \\
[1em]
House Tenure        &                     &      4591.4         &                     &      4056.1         \\
                    &                     &    (4264.6)         &                     &    (3930.8)         \\
[1em]
Majority            &                     &      -131.9         &                     &      -351.7         \\
                    &                     &     (950.0)         &                     &     (941.4)         \\
\hline
\(R^{2}\)           &       0.199         &       0.199         &       0.200         &       0.200         \\
Observations        &\num[group-separator={,}]{11329}         &\num[group-separator={,}]{11321}         &\num[group-separator={,}]{11329}         &\num[group-separator={,}]{11321}         \\
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         \\
Quarter Fixed Effects&         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}
