US federal lobbying disclosures for a public company (sourced from US Senate LDA filings). Pass ticker and optionally a from/to window (YYYY-MM-DD; defaults to ~3 years); returns each filing with the registrant name, the period (year + quarter), reported lobbying income/expenses in USD, and a link to the official Senate filing. Use it to track a company’s lobbying spend over time. Data by Finnhub.