&gt; 501c4s, aka SuperPACs are nonprofit &quot;charitable&quot; organizations.<p>Two major errors in only seven words:<p>1: 501c4s are not &quot;aka SuperPACs&quot;. Some SuperPACs are 501c4s, and some 501c4s are SuperPACs, but the things are neither equivalent (which is what &quot;aka&quot; [&quot;also known as&quot;] means) nor is either a subset of the other; there are 501c4s that are not SuperPACs, and SuperPACs that are not 501c4s (527s are less restricted than 501c4s in operations and historically more common for SuperPACs, 501c4s are adopted by some because, while more restricted in operation, they are able to keep donor lists secret while 527s are required to disclose donor lists.)<p>2: 501c4s (and 527s, for that matter) are tax-exempt non-profits, but <i>not</i> charities (charities are 501c3s, which in addition to being tax-exempt feature tax-deductibility of donations for donors; non-charity tax-exempt nonprofits <i>do not</i> feature deductibility of donations.)