Both cited PRIMARY sources (Grassley's own Senate site) are reachable and both quotes appear verbatim. The March 16, 2022 release ("PDPRA passed the Senate Finance Committee on a bipartisan vote, 19 to 9.") documents genuine, active effort to advance the standalone bill — Grassley "reiterated his commitment to passing the bipartisan and negotiated PDPRA" and urged colleagues to "pass Wyden-Grassley." The August 6, 2022 release ("I oppose the partisan bill because it's a long list of reckless tax increases and spending.") documents his opposition to the reconciliation vehicle (IRA) while preferring his own bipartisan bill. Neither quote is fabricated and both support the rated outcome. ATTEMPTED is well-calibrated and does not overstate the evidence: after the promise, the standalone PDPRA never received a full Senate floor vote and never became law (its only advance, the 19-9 committee vote, predates the promise), so FULL/PARTIAL would overstate — the fact that a few provisions were folded into the partisan IRA he voted against is not "passing his standalone bill." But he made documented, repeated efforts (reintroducing/updating the bill, op-eds, inviting action), so this is not passive inaction (not IGNORED/NO_OPPORTUNITY). As a minority-party senator he could not set the floor calendar and the majority chose a different route. The ATTEMPTED-vs-NO_OPPORTUNITY line carries some judgment, hence moderate confidence, but the active, ongoing effort clearly favors ATTEMPTED.