Ken Skates compares Welsh Labour to the Lord of the Rings' Fellowship of the Ring in the Senedd.
Pontypridd MP Alex Davies-Jones is the third junior minister to resign from the Home Office.
Senior MP says prime minister failed to cut through on doorsteps and should set a timetable to go.
The Plaid leader says he will "call out" the UK government, if that is needed, as first minister.
Rhun ap Iorwerth said he will try to run a minority government after his party's Senedd election triumph.
She took over when Welsh Labour was in crisis and leaves with it engulfed in electoral disaster.
Labour is not going to form the next Welsh government, its deputy first minister has admitted.
Wales' Senedd election has seen the potential for an M4 relief road return as a political issue.
Reform challenged other parties to publish their costings at a BBC leaders debate this week.
