“For voters opposed to Reform UK, tactical voting represents the most obvious counterstrategy – one of the explanations for the lopsided result in the Caerphilly byelection (which used FPTP). But to be effective, tactical voting requires clear information: voters must know which party has the best chance of defeating Reform UK in their own constituency."
Reform holds 11% lead over Plaid Cymru in Westminster election poll, as centre left vote fragments in Wales