In the 113th Congress, it looks like the House of Representatives had 95 unanimous votes, where unanimous is defined as having zero no votes and at least one yes vote. This is out of 1204 votes, based on a quick little script I whipped up.<p>You can look at the raw data pretty easily thanks to <a href="https:&#x2F;&#x2F;www.govtrack.us&#x2F;developers&#x2F;data" rel="nofollow">https:&#x2F;&#x2F;www.govtrack.us&#x2F;developers&#x2F;data</a><p><pre><code>    rsync -avz --delete --delete-excluded --exclude **&#x2F;text-versions&#x2F; govtrack.us::govtrackdata&#x2F;congress&#x2F;113&#x2F;votes .
    for file in votes&#x2F;*&#x2F;h*&#x2F;data.json; do
        noes=$(jq &#x27;(.votes.Nay | length) + (.votes.No | length)&#x27;  $file;)
        yeses=$(jq  &#x27;(.votes.Yea | length) + (.votes.Aye | length)&#x27; $file;)
        if [[ &quot;$yeses&quot; -gt 0 &amp;&amp; &quot;$noes&quot; -eq 0 ]]
            then
            echo $file :  &quot;No: $noes&quot; &quot;Yes: $yeses&quot;
        fi
    done | wc -l
</code></pre>
In the senate, the number is 87. (The code for the senate is basically the same, except you do<p><pre><code>    votes&#x2F;*&#x2F;s*&#x2F;data.json
    instead of
    votes&#x2F;*&#x2F;h*&#x2F;data.json
)</code></pre>