"Intense lobbying" refers to the strong and relentless efforts made by individuals or groups to persuade or influence lawmakers or decision-makers in favor of a particular cause or interest. Full definition
The announcement of the individual country targets follow intense lobbying by national, environmental and industry interest groups. (environmentalresearchweb.org)
Support for the city's bill has also faced intense lobbying from plastic bag manufacturers. (nytimes.com)
Any variations from the plan require intense lobbying to meet the unique needs of their students. (blog.k-12leadership.org)