In 2019, then-Senator Kamala Harris proposed significant immigration reforms through her presidential campaign efforts, which included linking studies on her website that detailed economic and electoral benefits associated with the non-deportation of specific groups of immigrants.

Her prior stance encapsulates Harris' ongoing advocacy for non-deportation policies which she claimed could potentially boost the U.S. economy, but as critics suggest, also skew electoral demographics to favor Democrats, as Fox News reports.

During Harris' prior presidential run, her campaign centered on the introduction of broad immigration reforms, including a "new roadmap to citizenship" for Dreamers.

The roadmap would have extended protections and forestalled the deportation of illegal immigrant parents of U.S. citizens and legal permanent residents.

DAPA Program's Potential Impacts Detailed

Harris’ website discussed the Deferred Action for Parents of Americans and Lawful Permanent Residents (DAPA) program.

Citing statistics from the Center for American Progress, the site emphasized that protective measures could safeguard over 6 million immigrants and enrich the U.S. GDP by up to $445 billion over a decade.

Furthermore, the proposition planned to provide a pathway to citizenship for approximately 2.1 million Dreamers.

These significant figures were justified by a 2015 study that shed light on both the economic and electoral impacts of such policies, showing an overarching benefit across various societal and economic strata.

Implication of Citizenship Paths in Electoral Outcomes

According to further details from Harris' campaign website, the DAPA program could transform the electoral landscape significantly.

"We estimate the plan will protect over 6 million immigrants from deportation, add up to $445 billion to U.S. GDP over ten years, and provide America’s 2.1 million Dreamers a path to citizenship if they have a congressionally-required family- or employment-based grounds to adjust status," stated the campaign.

The Center for American Progress study further highlighted that the demographic shifts resulting from the implementation of DAPA might significantly impact voter margins in crucial swing states. The analysis speculated this by targeting the larger voting pool of U.S. citizen children of DAPA beneficiaries.

Vice President Harris’s Stance in Biden Administration

Since ascending to the role of vice president, Kamala Harris has continued to champion these initial visions. Under the Biden administration, a new bill was introduced that seeks to build expansive pathways for citizenship for illegal immigrants.

Harris has persistently advocated for these pathways, emphasizing their integral role in the broader scheme of U.S. immigration reform. "There is more work to be done to fix our broken immigration system. That includes the need for a pathway to citizenship for Dreamers. President Biden and I continue to call on the United States Congress to join us in acting by passing permanent protections for Dreamers," Harris articulated in June.

Comprehensive Reform as an Economic Strategy

This persistent promotion of immigration reform by Vice President Harris underscores what her supporters say is a dual-benefit strategy that aligns economic revitalization with demographic adjustments.

The Harris campaign and subsequent actions in the vice presidency suggest a profound belief in the economic contributions of immigrants and their elemental role in shaping electoral futures.

By integrating these demographic groups more fully into the societal fabric through legal protections and citizenship pathways, the administration posits an increase in GDP and a secure, multicultural electorate that could sway future elections in favor of the left.

Legislative Challenges and Forward Movement

Despite the advocacy and the proposed benefits laid out by the studies, Harris and the Biden administration face a challenging road ahead. The legislative process involves negotiation and compromise, and the broad sweeping reforms suggested require bipartisan support.

The issue of immigration remains a contentious and polarizing subject within American politics, demanding deft navigation and robust backing to realize these ambitious plans.

In conclusion, Vice President Kamala Harris remains steadfast in her efforts to fortify and expand the pathways to citizenship for undocumented immigrants, projecting significant economic and electoral advantages.

Her campaign's insights into non-deportation benefits under the DAPA program, alongside the proposed legislative frameworks of the Biden administration, highlight a pivotal moment in U.S. immigration policy with what could be far-reaching -- yet controversial -- implications for both the economy and the future electoral landscape.