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Mukundan Sivaraj

Mukundan Sivaraj is a writer at CallHub focused on nonprofit technology and campaign communication. He has published more than 90 articles on the CallHub blog, including research-based pieces on whether GOTV works, the science behind voting plans, and GOTV programs for unions and advocacy groups. He also covers short code texting, text-to-give pages, donor retention calling, and the compliance rules campaigns must follow when calling and texting voters. He shows nonprofits of every size how outreach technology can advance their cause.

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What Is Voter Mobilization? Definition and Examples
Get Out The Vote

What Is Voter Mobilization? Definition and Examples

Three terms show up on almost every campaign plan: voter registration, voter mobilization, and get out…

Aug 4, 2026 · 15 min read
Does GOTV Work? The Research on Voter Turnout Programs
Get Out The Vote

Does GOTV Work? The Research on Voter Turnout Programs

The answer to whether does get out the vote work depends on which channel you run…

Aug 4, 2026 · 16 min read
The Best Election Campaign Messages that Appeal to Voters
Political Campaign

The Best Election Campaign Messages that Appeal to Voters

In 2008, Obama debuted the campaign slogan “Yes We Can” to great effect. From the adoring…

Mar 18, 2026 · 16 min read
Calling Donor Retention: A Simple Way to Reduce Churn
Donor Relationship & Cultivation

Calling Donor Retention: A Simple Way to Reduce Churn

One phone call can make a real difference for your donors. Calling donor retention is a…

Mar 5, 2026 · 8 min read
Shortcode Texting: Everything You Need To Know In 2026
Text Messaging

Shortcode Texting: Everything You Need To Know In 2026

Shortcode texting continues to be one of the most direct, effective ways for brands and organizations…

Jan 22, 2026 · 9 min read